| B Fibers use Nerve Fibers, Myelinated | 
              | B Virus use Herpesvirus 1, Cercopithecine | 
              | B- and T-Cell Acute Lymphoblastic Leukemia use Leukemia, Biphenotypic, Acute | 
              | B- and T-Cell Leukemia, Acute use Leukemia, Biphenotypic, Acute | 
              | B-50 Protein use GAP-43 Protein | 
              | B-Cell Activating Factor | 
              | B-Cell Activation Antigen use Antigens, CD80 | 
              | B-Cell Activation Factor Receptor | 
              | B-Cell Antigen Receptors use Receptors, Antigen, B-Cell | 
              | B-Cell Differentiation Antigens use Antigens, Differentiation, B-Lymphocyte | 
              | B-Cell Epitopes use Epitopes, B-Lymphocyte | 
              | B-Cell Gene Rearrangement use Gene Rearrangement, B-Lymphocyte | 
              | B-Cell Growth Factor-I use Interleukin-4 | 
              | B-Cell Growth Factor-II use Interleukin-5 | 
              | B-Cell Heavy Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Heavy Chain | 
              | B-Cell Leukemia use Leukemia, B-Cell | 
              | B-Cell Leukemia, Chronic use Leukemia, Lymphocytic, Chronic, B-Cell | 
              | B-Cell Light Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Light Chain | 
              | B-Cell Lymphoma use Lymphoma, B-Cell | 
              | B-Cell Maturation Antigen | 
              | B-Cell Prolymphocytic Leukemia use Leukemia, Prolymphocytic, B-Cell | 
              | B-Cell Stimulatory Factor-1 use Interleukin-4 | 
              | B-Cell Subsets use B-Lymphocyte Subsets | 
              | B-Cell-Specific Activator Protein | 
              | B-Cells use B-Lymphocytes | 
              | B-K Mole Syndrome use Dysplastic Nevus Syndrome | 
              | B-Lymphocyte Cell Adhesion Molecule use Antigens, CD22 | 
              | B-Lymphocyte Differentiation Antigens use Antigens, Differentiation, B-Lymphocyte | 
              | B-Lymphocyte Epitopes use Epitopes, B-Lymphocyte | 
              | B-Lymphocyte Gene Rearrangement use Gene Rearrangement, B-Lymphocyte | 
              | B-Lymphocyte Heavy Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Heavy Chain | 
              | B-Lymphocyte kappa-Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Light Chain | 
              | B-Lymphocyte lambda-Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Light Chain | 
              | B-Lymphocyte Light Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Light Chain | 
              | B-Lymphocyte mu Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Heavy Chain | 
              | B-Lymphocyte Subsets | 
              | B-Lymphocytes | 
              | B-Lymphocytic Leukemia use Leukemia, B-Cell | 
              | B-Lymphocytic Leukemia, Chronic use Leukemia, Lymphocytic, Chronic, B-Cell | 
              | B16 Melanoma use Melanoma, Experimental | 
              | B19 virus use Parvovirus B19, Human | 
              | B2B Sales Products use Products of Institution Restricted Sale | 
              | B2C Sales Products use Products of Consumer Direct Sale | 
              | B7-1 Costimulatory Molecule use Antigens, CD80 | 
              | B7-2 Costimulatory Molecule use Antigens, CD86 | 
              | Babaçu Coconut Fat use Vegetable Fats | 
              | Babanki virus use Sindbis Virus | 
              | Babesia | 
              | Babesia bovis | 
              | Babesia microti | 
              | Babesiasis use Babesiosis | 
              | Babesiosis | 
              | Babinski Reflex use Reflex, Babinski | 
              | Baboon orthoreovirus use Orthoreovirus | 
              | Baboon, Gelada use Theropithecus | 
              | Baboons use Papio | 
              | Baboons, Savanna use Papio | 
              | Babuvirus | 
              | Baby Bottle use Nursing Bottles | 
              | Baby Equipment use Infant Equipment | 
              | Baby's Milk Bottle use Nursing Bottles | 
              | Baccharis | 
              | Bach Floral Drugs use Floral Remedies | 
              | Bach Floral Remedies use Floral Remedies | 
              | Bach Flower Drugs use Floral Remedies | 
              | Bach Flower Essences use Floral Remedies | 
              | Bach Flower Remedies use Floral Remedies | 
              | Bach Intestinal Bacillus use Bacillus Bach-Paterson | 
              | Bacillaceae | 
              | Bacillaceae Infections | 
              | Bacillales | 
              | Bacillariophyta use Diatoms | 
              | Bacillary Angiomatosis use Angiomatosis, Bacillary | 
              | Bacillinum use Bacillinum burnett | 
              | Bacillinum 10 | 
              | Bacillinum 7 | 
              | Bacillinum burnett | 
              | Bacillinum testium | 
              | Bacillus | 
              | Bacillus 10 use Bacillinum 10 | 
              | Bacillus 7 use Bacillinum 7 | 
              | Bacillus anthracis | 
              | Bacillus Bach-Paterson | 
              | Bacillus Calmette Guerin Vaccine use BCG Vaccine | 
              | Bacillus calmette-guerin use Vaccin attenue bilie | 
              | Bacillus cereus | 
              | Bacillus dysenteriae | 
              | Bacillus faecalis | 
              | Bacillus Gaertner | 
              | Bacillus megaterium | 
              | Bacillus Morgan Gaertner | 
              | Bacillus Morgan Puro | 
              | Bacillus Morgan x | 
              | Bacillus mutabilis | 
              | Bacillus Phages | 
              | Bacillus proteus | 
              | Bacillus stearothermophilus use Geobacillus stearothermophilus | 
              | Bacillus subtilis | 
              | Bacillus sycoccus | 
              | Bacillus thuringiensis | 
              | Bacitracin | 
              | Back | 
              | Back Injuries | 
              | Back Pain | 
              | Backache use Back Pain | 
              | Backcrossing use Inbreeding | 
              | Background Radiation | 
              | Backwater | 
              | Baclofen | 
              | Baclofen Receptors use Receptors, GABA-B | 
              | Baclophen use Baclofen | 
              | Bacopa | 
              | Bacteremia | 
              | Bacteremia, Hemorrhagic use Hemorrhagic Septicemia | 
              | Bacteria | 
              | Bacteria Die-Off use T90 | 
              | Bacteria Fading use T90 | 
              | Bacteria, Aerobic | 
              | Bacteria, Anaerobic | 
              | Bacteria, Green Non-Sulfur use Chloroflexi | 
              | Bacteria, Green Sulfur use Chlorobi | 
              | Bacteria, Purple use Proteobacteria | 
              | Bacteria, Purple Nonsulfur use Rhodospirillaceae | 
              | Bacteria, Purple Sulfur use Chromatiaceae | 
              | Bacterial Adhesins use Adhesins, Bacterial | 
              | Bacterial Adhesion | 
              | Bacterial Antibodies use Antibodies, Bacterial | 
              | Bacterial Antigens use Antigens, Bacterial | 
              | Bacterial Artificial Chromosomes use Chromosomes, Artificial, Bacterial | 
              | Bacterial Attachment Sites use Attachment Sites, Microbiological | 
              | Bacterial Capsules | 
              | Bacterial Chromatophores | 
              | Bacterial Conjugation use Conjugation, Genetic | 
              | Bacterial Conjunctivitis use Conjunctivitis, Bacterial | 
              | Bacterial Count use Bacterial Load | 
              | Bacterial Die-Off use T90 | 
              | Bacterial DNA use DNA, Bacterial | 
              | Bacterial Elongation Factor Tu use Peptide Elongation Factor Tu | 
              | Bacterial Eye Infections use Eye Infections, Bacterial | 
              | Bacterial Fimbriae use Fimbriae, Bacterial | 
              | Bacterial Gene Expression Regulation use Gene Expression Regulation, Bacterial | 
              | Bacterial Gene Products use Bacterial Proteins | 
              | Bacterial Gene Proteins use Bacterial Proteins | 
              | Bacterial Genome use Genome, Bacterial | 
              | Bacterial Growth | 
              | Bacterial Growth Phases use Bacterial Growth | 
              | Bacterial Infections | 
              | Bacterial Infections and Mycoses | 
              | Bacterial Infections, Central Nervous System use Central Nervous System Bacterial Infections | 
              | Bacterial Infections, Gram-Negative use Gram-Negative Bacterial Infections | 
              | Bacterial Infections, Gram-Positive use Gram-Positive Bacterial Infections | 
              | Bacterial Interference use Antibiosis | 
              | Bacterial Load | 
              | Bacterial Meningitis use Meningitis, Bacterial | 
              | Bacterial Outer Membrane Proteins | 
              | Bacterial Physiological Phenomena | 
              | Bacterial Physiology use Bacterial Physiological Phenomena | 
              | Bacterial Pili use Fimbriae, Bacterial | 
              | Bacterial Polysaccharides use Polysaccharides, Bacterial | 
              | Bacterial Processes | 
              | Bacterial Proteins | 
              | Bacterial Proton-Translocating ATPases | 
              | Bacterial Rhodopsins use Rhodopsins, Microbial | 
              | Bacterial RNA use RNA, Bacterial | 
              | Bacterial Secretion Systems | 
              | Bacterial Sensitivity Tests use Microbial Sensitivity Tests | 
              | Bacterial Shedding | 
              | Bacterial Spores use Spores, Bacterial | 
              | Bacterial Structures | 
              | Bacterial Toxins | 
              | Bacterial Transferrin Receptor Complex | 
              | Bacterial Translocation | 
              | Bacterial Typing Techniques | 
              | Bacterial Vaccines | 
              | Bacterial Vaginosis use Vaginosis, Bacterial | 
              | Bacterial Viability use Microbial Viability | 
              | Bacterial Warfare use Biological Warfare | 
              | Bactericides | 
              | Bacteriochlorophyll A | 
              | Bacteriochlorophylls | 
              | Bacteriocin Factors use Bacteriocin Plasmids | 
              | Bacteriocin Plasmids | 
              | Bacteriocin Typing use Bacterial Typing Techniques | 
              | Bacteriocins | 
              | Bacteriological Analysis | 
              | Bacteriological Techniques | 
              | Bacteriology | 
              | Bacteriolysis | 
              | Bacteriophage fd use Bacteriophage M13 | 
              | Bacteriophage G4 use Microvirus | 
              | Bacteriophage HK022 | 
              | Bacteriophage IKe | 
              | Bacteriophage lambda | 
              | Bacteriophage M13 | 
              | Bacteriophage MS2 use Levivirus | 
              | Bacteriophage mu | 
              | Bacteriophage N4 | 
              | Bacteriophage P1 | 
              | Bacteriophage P1 Artificial Chromosomes use Chromosomes, Artificial, P1 Bacteriophage | 
              | Bacteriophage P2 | 
              | Bacteriophage P22 | 
              | Bacteriophage Pf1 | 
              | Bacteriophage phi 105 use Bacillus Phages | 
              | Bacteriophage phi 29 use Bacillus Phages | 
              | Bacteriophage phi 6 | 
              | Bacteriophage phi X 174 | 
              | Bacteriophage PM2 use Corticoviridae | 
              | Bacteriophage PRD1 | 
              | Bacteriophage Q beta use Allolevivirus | 
              | Bacteriophage T2 use Bacteriophage T4 | 
              | Bacteriophage T3 | 
              | Bacteriophage T4 | 
              | Bacteriophage T7 | 
              | Bacteriophage Typing | 
              | Bacteriophages | 
              | Bacteriophages T use T-Phages | 
              | Bacteriophages, Filamentous use Inovirus | 
              | Bacteriophages, RNA use RNA Phages | 
              | Bacteriorhodopsins | 
              | Bacteriuria | 
              | Bacteroidaceae | 
              | Bacteroidaceae Infections | 
              | Bacteroides | 
              | Bacteroides corrodens use Eikenella corrodens | 
              | Bacteroides fragilis | 
              | Bacteroides gingivalis use Porphyromonas gingivalis | 
              | Bacteroides Infections | 
              | Bacteroides intermedius use Prevotella intermedia | 
              | Bacteroides melaninogenicus use Prevotella melaninogenica | 
              | Bacteroides nodosus use Dichelobacter nodosus | 
              | Bacteroidetes | 
              | Bactris use Arecaceae | 
              | Bactrocera use Tephritidae | 
              | Baculoviridae | 
              | Badgers use Mustelidae | 
              | Badiaga | 
              | Badminton use Racquet Sports | 
              | Badnavirus | 
              | Baerveldt Implants use Glaucoma Drainage Implants | 
              | BAFF Ligand use B-Cell Activating Factor | 
              | Bag Filters | 
              | Bagassosis use Pneumoconiosis | 
              | Bahama Grass use Cynodon dactylon | 
              | Bahamas | 
              | Bahiagrass use Paspalum | 
              | Bahrain | 
              | Bahupatra use Phyllanthus | 
              | Baiji use Dolphins | 
              | Baillarger Syndrome use Sweating, Gustatory | 
              | Baja | 
              | Bajra use Pennisetum | 
              | Bak Protein use bcl-2 Homologous Antagonist-Killer Protein | 
              | Baker's Cyst use Popliteal Cyst | 
              | Baker's Yeast use Saccharomyces cerevisiae | 
              | Baker's Yeast Proteins use Saccharomyces cerevisiae Proteins | 
              | Baking Powder | 
              | Baking Soda use Sodium Bicarbonate | 
              | Balaenoptera | 
              | Balaenoptera borealis use Balaenoptera | 
              | Balaenoptera brydei use Balaenoptera | 
              | Balanced Anesthesia | 
              | Balanites | 
              | Balanitis | 
              | Balanitis Xerotica Obliterans | 
              | Balanophoraceae | 
              | Balantidiasis | 
              | Balantidium | 
              | Balanus use Thoracica | 
              | BALB 3T3 Cells | 
              | Bald Cypress use Taxodium | 
              | Baldness use Alopecia | 
              | Balint Psychoanalytic Therapy use Psychoanalytic Therapy | 
              | Balkan Nephropathy | 
              | Ballismus use Dyskinesias | 
              | Ballistics use Forensic Ballistics | 
              | Ballistics, Wound use Forensic Ballistics | 
              | Ballistocardiography | 
              | Ballobes Balloon use Gastric Balloon | 
              | Balloon Angioplasty use Angioplasty, Balloon | 
              | Balloon Catheterization use Balloon Dilation | 
              | Balloon Dilation | 
              | Balloon Flower use Platycodon | 
              | Balloon Occlusion | 
              | Balloon Tamponade use Balloon Occlusion | 
              | Balloon Valvotomy use Balloon Dilation | 
              | Balloon Valvuloplasty use Balloon Dilation | 
              | Ballota | 
              | Balneology | 
              | Balneotherapy use Balneology | 
              | Balo Concentric Sclerosis use Diffuse Cerebral Sclerosis of Schilder | 
              | Balsa use Bombacaceae | 
              | Balsam Fir use Abies | 
              | Balsam of Tolu use Balsamum tolutanum | 
              | Balsam Peru use Balsamum peruvianum | 
              | Balsaminaceae | 
              | Balsamodendrum myrrha use Myrrha | 
              | Balsams | 
              | Balsamum copaivae use Copaiva | 
              | Balsamum peruvianum | 
              | Balsamum tolutanum | 
              | Baltic Myoclonus use Unverricht-Lundborg Syndrome | 
              | Baltic States | 
              | Baltimore | 
              | Bambermycins | 
              | Bamboo Grass use Sasa | 
              | Bamboo Pipes | 
              | Bambusa | 
              | Ban Xia use Pinellia | 
              | Banana use Musa | 
              | Banana bunchy top virus use Babuvirus | 
              | Banana Plant use Musa | 
              | Bancroftian Elephantiasis use Elephantiasis, Filarial | 
              | Band 3 Protein use Anion Exchange Protein 1, Erythrocyte | 
              | Bandages | 
              | Bandages, Hydrocolloid | 
              | Bandages, Hydrogel use Bandages, Hydrocolloid | 
              | Bandages, Occlusive use Occlusive Dressings | 
              | Banded Krait use Bungarus fasciatus | 
              | Bandicoot Rats use Murinae | 
              | Bandicota use Murinae | 
              | Banding, Chromosome use Chromosome Banding | 
              | Baneberry use Actaea | 
              | Bang's Disease use Brucellosis, Bovine | 
              | Bangladesh | 
              | Banha use Pinellia | 
              | Banisteria quitensis | 
              | Banisterine use Harmine | 
              | Banisteriopsis | 
              | Bankruptcy | 
              | Banksia abyssinica use Kousso | 
              | Banna virus use Coltivirus | 
              | Bannayan-Riley-Ruvalcaba Syndrome use Hamartoma Syndrome, Multiple | 
              | Baobab use Adansonia | 
              | BAPNA use Benzoylarginine Nitroanilide | 
              | Baptisia use Fabaceae | 
              | Baptisia australis use Baptisia confusa | 
              | Baptisia confusa | 
              | Baptisia tinctoria | 
              | Bar Codes use Automatic Data Processing | 
              | Barany Test use Caloric Tests | 
              | Barbados | 
              | Barbae cyprini oveoa | 
              | Barbarea | 
              | Barbary Ape use Macaca | 
              | Barbary Fig use Opuntia ficus | 
              | Barbasco use Paullinia | 
              | Barbatimao use Stryphnodendron barbatimam | 
              | Barbels use Cyprinidae | 
              | Barber use Barbering | 
              | Barber Shop use Barbering | 
              | Barber Shops use Barbering | 
              | Barber Surgeons | 
              | Barbering | 
              | Barberry use Berberis | 
              | Barberry, Hollyleaved use Mahonia | 
              | Barbershop use Barbering | 
              | Barbital | 
              | Barbitone use Barbital | 
              | Barbiturates | 
              | Barbuda use Antigua and Barbuda | 
              | Barbuda and Antigua use Antigua and Barbuda | 
              | Barbus fluviatilis use Barbae cyprini oveoa | 
              | Bardet-Biedl Syndrome | 
              | Bare Lymphocyte Syndrome use Severe Combined Immunodeficiency | 
              | Barefoot Doctors use Community Health Aides | 
              | Bariatric Medicine | 
              | Bariatric Surgery | 
              | Bariatrics | 
              | Barium | 
              | Barium Aceticum use Baryta Acetica | 
              | Barium Carbonicum use Baryta Carbonica | 
              | Barium Compounds | 
              | Barium Iodatum use Baryta Iodata | 
              | Barium Muriaticum use Baryta Muriatica | 
              | Barium Phosphoricum use Baryta Phosphorica | 
              | Barium Radioisotopes | 
              | Barium Sulfate | 
              | Barium Sulfuricum use Baryta Sulphurica | 
              | Bark Cloth Tree use Upas antiaris | 
              | Bark, Plant use Plant Bark | 
              | Bark, Tree use Plant Bark | 
              | Barley use Hordeum | 
              | Barley Yellow Dwarf Viruses use Luteovirus | 
              | Barmah forest virus use Alphavirus | 
              | Barn Owls use Strigiformes | 
              | Barnacles use Thoracica | 
              | Barometer | 
              | Barometric Pressure use Atmospheric Pressure | 
              | Baroreceptors use Pressoreceptors | 
              | Baroreflex | 
              | Barosma crenata use Barosma crenulatum | 
              | Barosma crenulatum | 
              | Barosmin use Diosmin | 
              | Barotrauma | 
              | Barr Bodies use Sex Chromatin | 
              | Barrages use Dams | 
              | Barre-Lieou Syndrome use Posterior Cervical Sympathetic Syndrome | 
              | Barrett Esophagus | 
              | Barrett Syndrome use Barrett Esophagus | 
              | Barrier use Dams | 
              | Barrier Contraception use Contraception, Barrier | 
              | Barriers, Architectural use Architectural Accessibility | 
              | Barring Structures | 
              | Barringtonia | 
              | Bartfelder Aqua | 
              | Barth Syndrome | 
              | Bartholin's Glands | 
              | Bartonella | 
              | Bartonella bacilliformis | 
              | Bartonella henselae | 
              | Bartonella Infections | 
              | Bartonella quintana | 
              | Bartonellaceae | 
              | Bartonellaceae Infections | 
              | Bartonellosis use Bartonella Infections | 
              | Bartter Syndrome | 
              | Baryons use Elementary Particles | 
              | Baryta Acetica | 
              | Baryta Carbonica | 
              | Baryta Iodata | 
              | Baryta Muriatica | 
              | Baryta Phosphorica | 
              | Baryta Sulphurica | 
              | Basaka use Justicia adhatoda (Homeopathy) | 
              | Basal Cell Cancer use Neoplasms, Basal Cell | 
              | Basal Cell Nevus Syndrome | 
              | Basal Ganglia | 
              | Basal Ganglia Cerebrovascular Disease | 
              | Basal Ganglia Diseases | 
              | Basal Ganglia Hemorrhage | 
              | Basal Lamina use Basement Membrane | 
              | Basal Metabolism | 
              | Basal Nuclei use Basal Ganglia | 
              | Basal Nucleus of Meynert | 
              | Basal Nucleus, Olivary use Olivary Nucleus | 
              | Basal Vein use Cerebral Veins | 
              | Base Composition | 
              | Base Pair use Base Pairing | 
              | Base Pair Mismatch | 
              | Base Pairing | 
              | Base Ratio use Base Composition | 
              | Base Sequence | 
              | Base Sequence Homology use Sequence Homology, Nucleic Acid | 
              | Baseball | 
              | Basedow's Disease use Graves Disease | 
              | Basel Convention | 
              | Basement Lamina use Basement Membrane | 
              | Basement Membrane | 
              | Bases use Alkalies | 
              | Bashkir Republic use Bashkiria | 
              | Bashkiria | 
              | Bashkortostan use Bashkiria | 
              | Basic Amino Acid Transport Systems use Amino Acid Transport Systems, Basic | 
              | Basic Amino Acids use Amino Acids, Basic | 
              | Basic Cardiac Life Support use Cardiopulmonary Resuscitation | 
              | Basic Fibroblast Growth Factor use Fibroblast Growth Factor 2 | 
              | Basic Health Care Provisions use Basic Health Services | 
              | Basic Health Indicators use Health Status Indicators | 
              | Basic Health Services | 
              | Basic Helix-Loop-Helix Leucine Zipper Transcription Factors | 
              | Basic Helix-Loop-Helix Transcription Factors | 
              | Basic Homeopathic Research | 
              | Basic Needs use Health Services Needs and Demand | 
              | Basic Package of Benefits and Health Care Services use Basic Health Services | 
              | Basic Pancreatic Trypsin Inhibitor use Aprotinin | 
              | Basic Preparations | 
              | Basic Reproduction Number | 
              | Basic Research | 
              | Basic Sanitation | 
              | Basic Standards for Health Care use Health Care (Public Health) | 
              | Basic Substances use Alkalies | 
              | Basic-Leucine Zipper Transcription Factors | 
              | Basicranium use Skull Base | 
              | Basidiobolus use Entomophthorales | 
              | Basidiomycetes use Basidiomycota | 
              | Basidiomycota | 
              | Basification use Alkalinization | 
              | Basil use Ocimum basilicum | 
              | Basilar Artery | 
              | Basilar Artery Aneurysm use Intracranial Aneurysm | 
              | Basilar Artery Insufficiency use Vertebrobasilar Insufficiency | 
              | Basilar Artery Stenosis use Vertebrobasilar Insufficiency | 
              | Basilar Bone use Occipital Bone | 
              | Basilar Impression use Platybasia | 
              | Basilar Membrane | 
              | Basilar Papilla use Organ of Corti | 
              | Basilar Skull Fracture use Skull Fracture, Basilar | 
              | Basilar Steal Syndrome use Subclavian Steal Syndrome | 
              | Basilar-Type Migraine use Migraine with Aura | 
              | Basin Administration use Basin Authorities | 
              | Basin Authorities | 
              | Basin Management use Basin Authorities | 
              | Basins | 
              | Basketball | 
              | Basophil Degranulation Test | 
              | Basophilic Leukemia, Acute use Leukemia, Basophilic, Acute | 
              | Basophils | 
              | Basophils, Tissue use Mast Cells | 
              | Bass | 
              | Bassen-Kornzweig Syndrome use Abetalipoproteinemia | 
              | Bassia scoparia | 
              | Basswood use Tilia | 
              | Bastard Cabbage Tree use Geoffroya vermifuga | 
              | Basutoland use Lesotho | 
              | Batai virus use Bunyamwera virus | 
              | Bathing Beaches | 
              | Baths | 
              | Baths, Finnish use Steam Bath | 
              | Baths, Sand use Ammotherapy | 
              | Bathtubes use Sanitary Devices | 
              | Batrachoidiformes | 
              | Batrachotoxins | 
              | Batroxobin | 
              | Bats use Chiroptera | 
              | Batten Disease use Neuronal Ceroid-Lipofuscinoses | 
              | Battered Child Syndrome | 
              | Battered Women | 
              | Batteries | 
              | Battey Bacillus use Mycobacterium avium Complex | 
              | Battle Sign use Skull Fracture, Basilar | 
              | Bauerella use Rutaceae | 
              | Bauhinia | 
              | Bax Protein use bcl-2-Associated X Protein | 
              | Bax-alpha Protein use bcl-2-Associated X Protein | 
              | Bax-omega Protein use bcl-2-Associated X Protein | 
              | Bax-sigma Protein use bcl-2-Associated X Protein | 
              | Bay Laurel use Laurus | 
              | Bay Laurel, California use Umbellularia | 
              | Bay Leaf use Laurus | 
              | Bay, Sweet use Magnolia | 
              | Bay-Region Chemical Conformation use Bay-Region, Polycyclic Aromatic Hydrocarbon | 
              | Bay-Region, Polycyclic Aromatic Hydrocarbon | 
              | Bayberry use Myrica | 
              | Bayes Theorem | 
              | Bayesian Analysis use Bayes Theorem | 
              | Bayesian Forecast use Bayes Theorem | 
              | Bayesian Method use Bayes Theorem | 
              | Bayesian Prediction use Bayes Theorem | 
              | Baylisascaris use Ascaridoidea | 
              | Bayous use Swamps | 
              | Bays | 
              | Bazin's Disease use Erythema Induratum | 
              | BB Wistar Rats use Rats, Inbred BB | 
              | BCG use Mycobacterium bovis | 
              | BCG Vaccine | 
              | bcl-1 Genes use Genes, bcl-1 | 
              | bcl-1 Proto-Oncogene Proteins use Cyclin D1 | 
              | bcl-2 Genes use Genes, bcl-2 | 
              | bcl-2 Homologous Antagonist-Killer Protein | 
              | bcl-2 Proto-Oncogene Proteins use Proto-Oncogene Proteins c-bcl-2 | 
              | bcl-2-Associated X Protein | 
              | bcl-6 Proto-Oncogene Proteins use Proto-Oncogene Proteins c-bcl-6 | 
              | bcl-Associated Death Protein | 
              | bcl-X Protein | 
              | bcl-XL Protein use bcl-X Protein | 
              | bcl-XS Protein use bcl-X Protein | 
              | BCNU use Carmustine | 
              | bcr Proto-Oncogene Proteins use Proto-Oncogene Proteins c-bcr | 
              | bcr-abl Fusion Proteins use Fusion Proteins, bcr-abl | 
              | Bdellovibrio | 
              | BDNF use Brain-Derived Neurotrophic Factor | 
              | BDNF Receptor use Receptor, trkB | 
              | Beach Erosion | 
              | Beach Pollution | 
              | Beach Sanitation | 
              | Bead Tree use Melia azedarach | 
              | Beak | 
              | Beak and feather disease virus use Circovirus | 
              | Beaked Whales use Whales | 
              | Bean Plant, Precatory use Abrus | 
              | Bean Trefoil use Anagyris foetida | 
              | Bean, African Yam use Sphenostylis | 
              | Bean, Faba use Vicia faba | 
              | Bean, Horse use Vicia faba | 
              | Bean, Kidney use Phaseolus | 
              | Bean, Tepary use Phaseolus | 
              | Bean, Velvet use Mucuna | 
              | Bean, Yam use Pachyrhizus | 
              | Beans use Fabaceae | 
              | Bear Weed use Eriodictyon californicum | 
              | Bear's Foot use Helleborus foetidus | 
              | Bearberry use Arctostaphylos | 
              | Beard Lichen use Usnea barbata (Homeopathy) | 
              | Bears use Ursidae | 
              | Beating Heart Coronary Artery Bypass use Coronary Artery Bypass, Off-Pump | 
              | Beaufort Scale | 
              | Beauty | 
              | Beauty and Aesthetics Centers | 
              | Beauty Center use Beauty and Aesthetics Centers | 
              | Beauty Centers use Beauty and Aesthetics Centers | 
              | Beauty Centre use Beauty and Aesthetics Centers | 
              | Beauty Centres use Beauty and Aesthetics Centers | 
              | Beauty Creams use Beauty Lotions | 
              | Beauty Culture | 
              | Beauty Lotions | 
              | Beauty Parlor use Beauty and Aesthetics Centers | 
              | Beauty Parlors use Beauty and Aesthetics Centers | 
              | Beauty Parlour use Beauty and Aesthetics Centers | 
              | Beauty Parlours use Beauty and Aesthetics Centers | 
              | Beauty Products | 
              | Beauveria | 
              | Beaver Secretion use Castoreum canadense | 
              | Beavers use Rodentia | 
              | Bechterew Disease use Spondylitis, Ankylosing | 
              | Bechuanaland use Botswana | 
              | Becker Generalized Myotonia use Myotonia Congenita | 
              | Becker Muscular Dystrophy use Muscular Dystrophy, Duchenne | 
              | Beckwith-Wiedemann Syndrome | 
              | Beclomethasone | 
              | Beclomethasone Dipropionate use Beclomethasone | 
              | Becquerel | 
              | Bed Capacity, Hospital use Hospital Bed Capacity | 
              | Bed Conversion | 
              | Bed Filtration | 
              | Bed Nucleus of Stria Terminalis use Septal Nuclei | 
              | Bed Occupancy | 
              | Bed Rest | 
              | Bed Size, Hospital use Hospital Bed Capacity | 
              | Bedbugs | 
              | Bedding and Linens | 
              | Bedouins use Arabs | 
              | Beds | 
              | Beds, Swing use Bed Conversion | 
              | Bedside Computing use Point-of-Care Systems | 
              | Bedside Testing use Point-of-Care Systems | 
              | Bedsore use Pressure Ulcer | 
              | Bedstraw use Galium | 
              | Bedwetting use Nocturnal Enuresis | 
              | Bee use Apis mellifica | 
              | Bee Venoms | 
              | Beech use Fagus | 
              | Beech Drops use Epiphegus virginiana | 
              | Beech-Drops use Epiphegus virginiana | 
              | Beechdrops use Epiphegus virginiana | 
              | Beekeeping | 
              | Beer | 
              | Beer Industry use Brewery | 
              | Bees | 
              | Beesia use Ranunculaceae | 
              | Beestings use Colostrum (Homeopathy) | 
              | Beet Western Yellows Virus use Luteovirus | 
              | Beet yellow stunt virus use Closterovirus | 
              | Beet yellows virus use Closterovirus | 
              | Beetles | 
              | Beets use Beta vulgaris | 
              | Beggarticks use Bidens | 
              | Beggiatoa | 
              | Beginning of Human Life | 
              | Begomovirus | 
              | Begonia use Begoniaceae | 
              | Begoniaceae | 
              | Behavior | 
              | Behavior and Behavior Mechanisms | 
              | Behavior Control | 
              | Behavior Modification use Behavior Therapy | 
              | Behavior Therapy | 
              | Behavior Therapy, Cognitive use Cognitive Therapy | 
              | Behavior, Adaptive use Adaptation, Psychological | 
              | Behavior, Addictive | 
              | Behavior, Adolescent use Adolescent Behavior | 
              | Behavior, Animal | 
              | Behavior, Assaultive use Violence | 
              | Behavior, Child use Child Behavior | 
              | Behavior, Compulsive use Compulsive Behavior | 
              | Behavior, Dangerous use Dangerous Behavior | 
              | Behavior, Infant use Infant Behavior | 
              | Behavioral Disciplines and Activities | 
              | Behavioral Laterality use Functional Laterality | 
              | Behavioral Manipulation use Behavior Control | 
              | Behavioral Medicine | 
              | Behavioral Research | 
              | Behavioral Risk Factor Surveillance System | 
              | Behavioral Sciences | 
              | Behavioral Symptoms | 
              | Behaviorism | 
              | Behaviour use Behavior | 
              | Behaviour Against the Environment use Environmental Misconduct | 
              | Behcet Disease use Behcet Syndrome | 
              | Behcet Syndrome | 
              | Behcet's Syndrome use Behcet Syndrome | 
              | Behind-the-Counter Drugs | 
              | Beijerinckia use Beijerinckiaceae | 
              | Beijerinckiaceae | 
              | Bejel use Treponemal Infections | 
              | Bejuco use Guaco (Homeopathy) | 
              | Belarus use Republic of Belarus | 
              | Belching use Eructation | 
              | Belgian Congo use Democratic Republic of the Congo | 
              | Belgian Hare use Rabbits | 
              | Belgium | 
              | Belize | 
              | Bell Palsy | 
              | Bell Pepper use Capsicum | 
              | Bell's Palsy use Bell Palsy | 
              | Belladonna use Atropa belladonna | 
              | Belladonna Alkaloids | 
              | Bellflower use Codonopsis | 
              | Bellflower, Chinese use Platycodon | 
              | Bellis perennis | 
              | Beloniformes | 
              | Belorussian S.S.R. use Republic of Belarus | 
              | Beluga Whale | 
              | Bemegride | 
              | Benactyzine | 
              | Bence Jones Protein | 
              | Benchmarking | 
              | Benchmarking, Health Care use Benchmarking | 
              | Bencyclane | 
              | Bender-Gestalt Test | 
              | Bendrofluazide use Bendroflumethiazide | 
              | Bendroflumethiazide | 
              | Bends use Decompression Sickness | 
              | Beneckea use Vibrio | 
              | Benedict Syndrome use Brain Stem Infarctions | 
              | Beneficence | 
              | Benefit-Risk Assessment use Risk Assessment | 
              | Bengal Gram use Cicer arietinum | 
              | Benhydramin use Diphenhydramine | 
              | Benign Cerebellar Neoplasms use Cerebellar Neoplasms | 
              | Benign Childhood Epilepsy With Centro-Temporal Spikes use Epilepsy, Rolandic | 
              | Benign Epilepsy With Centrotemporal Spikes use Epilepsy, Rolandic | 
              | Benign Essential Tremor use Essential Tremor | 
              | Benign Intracranial Hypertension use Pseudotumor Cerebri | 
              | Benign Meningioma use Meningioma | 
              | Benign Monoclonal Gammopathies use Monoclonal Gammopathy of Undetermined Significance | 
              | Benign Prostatic Hyperplasia use Prostatic Hyperplasia | 
              | Benign Rolandic Epilepsy of Childhood use Epilepsy, Rolandic | 
              | Benin | 
              | Benomyl | 
              | Benperidol | 
              | Benserazide | 
              | Bensulfamide use Mafenide | 
              | Bentgrass use Agrostis | 
              | Benthic Fauna | 
              | Benthic Flora | 
              | Benthic Organisms use Benthic Fauna | 
              | Benthos use Benthic Fauna | 
              | Bentonite | 
              | Benz(a)Anthracenes | 
              | Benzalacetophenone use Chalcone | 
              | Benzaldehyde Dehydrogenase (NADP+) | 
              | Benzaldehydes | 
              | Benzalkonium use Benzalkonium Compounds | 
              | Benzalkonium Chloride use Benzalkonium Compounds | 
              | Benzalkonium Compounds | 
              | Benzalolin use Tolazoline | 
              | Benzamides | 
              | Benzamidines | 
              | Benzathine Penicillin use Penicillin G Benzathine | 
              | Benzazepines | 
              | Benzbromarone | 
              | Benzenaminium, 4,4'-(3-oxo-1,5-pentanediyl)bis(N,N-dimethyl-N-2-propenyl-), Dibromide | 
              | Benzene | 
              | Benzene Derivatives | 
              | Benzene Hexachloride use Lindane | 
              | Benzeneacetamide, 3,4-dichloro-N-methyl-N-(2-(1-pyrrolidinyl)cyclohexyl)-, (trans)-Isomer use 3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer | 
              | Benzeneacetamides | 
              | Benzenemethanesulfonyl Fluoride use Phenylmethylsulfonyl Fluoride | 
              | Benzenesulfonates | 
              | Benzethonium | 
              | Benzetimide use Dexetimide | 
              | Benzhexol use Trihexyphenidyl | 
              | Benzhydryl Compounds | 
              | Benzidines | 
              | Benzilates | 
              | Benzimidazoles | 
              | Benzindamine use Benzydamine | 
              | Benzinum | 
              | Benzinum Dinitricum | 
              | Benzinum Nitricum | 
              | Benzo(a)pyrene | 
              | Benzo(a)pyrene 7,8-Dihydrodiol 9,10-Epoxide use 7,8-Dihydro-7,8-dihydroxybenzo(a)pyrene 9,10-oxide | 
              | Benzoaric Acid use Ellagic Acid | 
              | Benzoate use Benzoates | 
              | Benzoate 4-Monooxygenase | 
              | Benzoates | 
              | Benzocaine | 
              | Benzocycloheptenes | 
              | Benzocyclooctanes use Cyclooctanes | 
              | Benzocyclooctenes use Cyclooctanes | 
              | Benzodiazepine-GABA Receptors use Receptors, GABA-A | 
              | Benzodiazepines | 
              | Benzodiazepinones | 
              | Benzodiones use Benzoquinones | 
              | Benzodioxoles | 
              | Benzoflavones | 
              | Benzofurans | 
              | Benzoic Acid | 
              | Benzoic Acids | 
              | Benzoicum Acidum | 
              | Benzoin | 
              | Benzoinum oderiferum | 
              | Benzol use Benzene | 
              | Benzolamide | 
              | Benzolum | 
              | Benzomorphans | 
              | Benzophenanthridines | 
              | Benzophenoneidum | 
              | Benzophenones | 
              | Benzopyrans | 
              | Benzopyrene Dihydrodiols use Dihydroxydihydrobenzopyrenes | 
              | Benzopyrene Hydroxylase | 
              | Benzopyrene-3-Monooxygenase use Benzopyrene Hydroxylase | 
              | Benzopyrenes | 
              | Benzoquinones | 
              | Benzothiadiazines | 
              | Benzothiazoles | 
              | Benzothiepins | 
              | Benzoxazines | 
              | Benzoxazinones use Benzoxazines | 
              | Benzoxazoles | 
              | Benzoxepins | 
              | Benzoyl Peroxide | 
              | Benzoyl Superoxide use Benzoyl Peroxide | 
              | Benzoylarginine beta-Naphthylamide use Benzoylarginine-2-Naphthylamide | 
              | Benzoylarginine Nitroanilide | 
              | Benzoylarginine-2-Naphthylamide | 
              | Benzoylcholine | 
              | Benzoylhydratropic Acid use Ketoprofen | 
              | Benzphetamine | 
              | Benztropine | 
              | Benzydamine | 
              | Benzyl Alcohol | 
              | Benzyl Alcohols | 
              | Benzyl Carbinol use Phenylethyl Alcohol | 
              | Benzyl Compounds | 
              | Benzyl Viologen | 
              | Benzylamine Oxidase | 
              | Benzylamines | 
              | Benzylammonium Compounds | 
              | Benzylidene Compounds | 
              | Benzylideneacetophenone use Chalcone | 
              | Benzylisoquinolines | 
              | Benzyloxyresorufin O-Dealkylase use Cytochrome P-450 CYP2B1 | 
              | Benzylpenicillin use Penicillin G | 
              | Bephenium Compounds | 
              | Bepridil | 
              | Ber-H2 Antigens use Antigens, CD30 | 
              | Berardius use Whales | 
              | Berberidaceae | 
              | Berberine | 
              | Berberine Alkaloids | 
              | Berberinum | 
              | Berberis | 
              | Berberis aquifolium | 
              | Berberis canadensis use Berberis vulgaris | 
              | Berberis vulgaris | 
              | Berbines use Berberine Alkaloids | 
              | Bereavement | 
              | Bereavement Care use Hospice Care | 
              | Bereitschaftspotential use Contingent Negative Variation | 
              | Berger Disease use Glomerulonephritis, IGA | 
              | Beriberi | 
              | Beriberi, Cerebral use Wernicke Encephalopathy | 
              | Berkelium | 
              | Berlin | 
              | Bermuda | 
              | Bermuda Grass use Cynodon dactylon | 
              | Bermudagrass use Cynodon | 
              | Bernard Syndrome use Horner Syndrome | 
              | Bernard-Soulier Syndrome | 
              | Berne Virus use Torovirus | 
              | Bernoulli Distribution use Binomial Distribution | 
              | Beroe use Ctenophora | 
              | Berries use Fruit | 
              | Berry Aneurysm use Intracranial Aneurysm | 
              | Bertholletia | 
              | Bertielliasis use Cestode Infections | 
              | Berylliosis | 
              | Beryllium | 
              | Beryllium Disease use Berylliosis | 
              | Beryllium Metallicum | 
              | Besnier-Boeck Disease use Sarcoidosis | 
              | Besnoitiasis use Coccidiosis | 
              | Best Practice Analysis use Benchmarking | 
              | beta 1-Glycoprotein, Pregnancy-Specific use Pregnancy-Specific beta 1-Glycoproteins | 
              | beta 2-Glycoprotein I | 
              | beta 2-Microglobulin | 
              | beta A-Crystallin use beta-Crystallin A Chain | 
              | Beta alba use Beta vulgaris (Homeopathy) | 
              | beta B-Crystallin use beta-Crystallin B Chain | 
              | beta Carotene | 
              | beta Catenin | 
              | beta Cell, Artificial use Insulin Infusion Systems | 
              | beta Cells, Pancreatic use Insulin-Secreting Cells | 
              | beta Integrins use Integrin beta Chains | 
              | beta Karyopherins | 
              | Beta Particles | 
              | beta Proteobacteria use Betaproteobacteria | 
              | Beta Rays use Beta Particles | 
              | Beta Rhythm | 
              | Beta vulgaris | 
              | Beta vulgaris (Homeopathy) | 
              | beta,beta-Dimethylcysteine use Penicillamine | 
              | beta-1 Adrenergic Receptors use Receptors, Adrenergic, beta-1 | 
              | beta-1 Glycoprotein, Trophoblast-Specific use Pregnancy-Specific beta 1-Glycoproteins | 
              | beta-2 Adrenergic Receptors use Receptors, Adrenergic, beta-2 | 
              | beta-3 Adrenergic Receptors use Receptors, Adrenergic, beta-3 | 
              | beta-Adaptins use Adaptor Protein Complex beta Subunits | 
              | beta-Adrenergic Agonists use Adrenergic beta-Agonists | 
              | beta-Adrenergic Blocking Agents use Adrenergic beta-Antagonists | 
              | beta-Adrenergic Receptor Agonists use Adrenergic beta-Agonists | 
              | beta-Adrenergic Receptor Blockaders use Adrenergic beta-Antagonists | 
              | beta-Adrenergic Receptor Kinase use beta-Adrenergic Receptor Kinases | 
              | beta-Adrenergic Receptor Kinase 1 use G-Protein-Coupled Receptor Kinase 2 | 
              | beta-Adrenergic Receptor Kinase 2 use G-Protein-Coupled Receptor Kinase 3 | 
              | beta-Adrenergic Receptor Kinases | 
              | beta-Adrenergic Receptors use Receptors, Adrenergic, beta | 
              | beta-Alanine | 
              | beta-Alanine Ketoglutarate Aminotransferase use 4-Aminobutyrate Transaminase | 
              | beta-Alanine-Pyruvate Transaminase | 
              | beta-Aminoethyl Isothiourea | 
              | beta-Aminoethylisothiuronium Diacetate use beta-Aminoethyl Isothiourea | 
              | beta-Aminoethylisothiuronium Dihydrobromide use beta-Aminoethyl Isothiourea | 
              | Beta-Aminopropionitrile use Aminopropionitrile | 
              | beta-Amylase | 
              | beta-Amyloid Protein use Amyloid beta-Peptides | 
              | beta-Amyloid Protein Precursor use Amyloid beta-Protein Precursor | 
              | beta-Blockers, Adrenergic use Adrenergic beta-Antagonists | 
              | beta-Carotene 15,15'-Monooxygenase | 
              | beta-Cell Tumor use Insulinoma | 
              | beta-Chemokines use Chemokines, CC | 
              | beta-Cholestanol use Cholestanol | 
              | beta-Crystallin A Chain | 
              | beta-Crystallin B Chain | 
              | beta-Crystallins | 
              | beta-Cyclodextrins | 
              | beta-D-Fructofuranosidase use beta-Fructofuranosidase | 
              | beta-D-Mannosidase use beta-Mannosidase | 
              | beta-Defensins | 
              | beta-Endorphin | 
              | beta-Endothelial Growth Factor use Endothelial Growth Factors | 
              | beta-Fructofuranosidase | 
              | beta-Galactosidase | 
              | beta-Globin use beta-Globins | 
              | beta-Globins | 
              | Beta-Globulins | 
              | beta-Glucans | 
              | beta-Glucosidase | 
              | beta-Heparin use Dermatan Sulfate | 
              | beta-Hexosaminidase alpha Chain | 
              | beta-Hexosaminidase beta Chain | 
              | beta-Hydroxyacyl Dehydratases use Enoyl-CoA Hydratase | 
              | beta-Hydroxyacyl Dehydrogenases use 3-Hydroxyacyl CoA Dehydrogenases | 
              | beta-Hydroxybutyrate use 3-Hydroxybutyric Acid | 
              | beta-Hydroxyphenethylamine use 2-Hydroxyphenethylamine | 
              | beta-Hypophamine use Vasopressins | 
              | beta-Interferon use Interferon-beta | 
              | beta-Keratins | 
              | beta-Ketothiolase use Acetyl-CoA C-Acyltransferase | 
              | beta-Lactam Resistance | 
              | beta-Lactamase I use Penicillinase | 
              | beta-Lactamase II use Cephalosporinase | 
              | beta-Lactamases | 
              | beta-Lactams | 
              | beta-Lactams, Monocyclic use Monobactams | 
              | beta-Lipoproteins use Lipoproteins, LDL | 
              | beta-Lipotropin | 
              | beta-Mannosidase | 
              | beta-Mannosidosis | 
              | beta-Mercaptopropionate use 3-Mercaptopropionic Acid | 
              | beta-Methyldigoxin use Medigoxin | 
              | beta-MSH | 
              | beta-N-Acetyl-Galactosaminidase | 
              | beta-N-Acetylglucosaminylglycopeptide beta-1,4-Galactosyltransferase | 
              | beta-N-Acetylhexosaminidase use beta-N-Acetylhexosaminidases | 
              | beta-N-Acetylhexosaminidases | 
              | beta-Naphthoflavone | 
              | beta-Naphthylamine use 2-Naphthylamine | 
              | beta-Phenylethanolamine use 2-Hydroxyphenethylamine | 
              | beta-Propiolactone use Propiolactone | 
              | beta-Sarcoglycan use Sarcoglycans | 
              | beta-Sheet Conformation, Protein use Protein Structure, Secondary | 
              | beta-Strand Conformation, Protein use Protein Structure, Secondary | 
              | beta-Sulfoalanine use Cysteic Acid | 
              | beta-Synuclein | 
              | beta-Thalassemia | 
              | beta-Thionase use Cystathionine beta-Synthase | 
              | beta-Thromboglobulin | 
              | beta-Tocopherol | 
              | beta-Transducin use Transducin | 
              | beta-Transducin Repeat-Containing Proteins | 
              | beta-Tryptases use Tryptases | 
              | beta-Tyrosinase use Tyrosine Phenol-Lyase | 
              | beta-Very-Low-Density Lipoproteins use Lipoproteins, IDL | 
              | beta-Vinculin use Vinculin | 
              | Betacarotene use beta Carotene | 
              | Betacyanins | 
              | Betadexamethasone use Betamethasone | 
              | Betaherpesvirinae | 
              | Betahistine | 
              | Betaine | 
              | Betaine-Aldehyde Dehydrogenase | 
              | Betaine-Homocysteine S-Methyltransferase | 
              | Betainum Muriaticum | 
              | Betalains | 
              | Betamethasone | 
              | Betamethasone 17-Valerate | 
              | Betanodavirus use Nodaviridae | 
              | Betapapillomavirus | 
              | Betaproteobacteria | 
              | Betaretrovirus | 
              | Betatrons use Particle Accelerators | 
              | Betaxanthins | 
              | Betaxolol | 
              | Betazole | 
              | Betel Nut use Areca | 
              | Bethanechol | 
              | Bethanechol Compounds | 
              | Bethanidine | 
              | Betonica aquatica | 
              | Betonica officinalis use Stachys betonica | 
              | Betony (Water) use Betonica aquatica | 
              | Bettongia use Potoroidae | 
              | Betula | 
              | Betula serrulata use Alnus rubra | 
              | Betulaceae | 
              | Betulla alba | 
              | Betumen liquidum use Petroleum (Homeopathy) | 
              | Beverage Storage use Food Storage | 
              | Beverage Storing use Food Storage | 
              | Beverages | 
              | Bezafibrate | 
              | Bezoars | 
              | BH3 Interacting Domain Death Agonist Protein | 
              | Bhang use Cannabis | 
              | BHM Virus use Herpesvirus 2, Bovine | 
              | Bhopal Accident | 
              | Bhopal Accidental Release | 
              | Bhutan | 
              | Biacetyl use Diacetyl | 
              | Bianilines use Benzidines | 
              | Bias (Epidemiology) | 
              | Bias, Aggregation use Bias (Epidemiology) | 
              | Bias, Ecological use Bias (Epidemiology) | 
              | Bias, Observer use Observer Variation | 
              | Bias, Selection use Selection Bias | 
              | Bias, Statistical use Bias (Epidemiology) | 
              | Bias, Systematic use Bias (Epidemiology) | 
              | Bibenzyls | 
              | Bible | 
              | Bibliographic Databases use Databases, Bibliographic | 
              | Bibliography | 
              | Bibliography as Topic | 
              | Bibliography of Medicine | 
              | Bibliography, Descriptive | 
              | Bibliography, National | 
              | Bibliography, Statistical use Bibliometrics | 
              | Bibliometric Indicators | 
              | Bibliometrics | 
              | Bibliotherapy | 
              | Bicarbonate Ions use Bicarbonates | 
              | Bicarbonates | 
              | Bichromas Kalicus use Kali Bichromicum | 
              | Bicuculline | 
              | Bicuspid | 
              | Bicuspid Valve use Mitral Valve | 
              | Bicycle Ergometry Test use Exercise Test | 
              | Bicycling | 
              | Bicyclo Compounds | 
              | Bicyclo Compounds, Heterocyclic | 
              | Bid Protein use BH3 Interacting Domain Death Agonist Protein | 
              | Bidens | 
              | Bidet use Sanitary Devices | 
              | Bifidobacteriales Infections | 
              | Bifidobacterium | 
              | Biflavonoids | 
              | Bifunctional Antibodies use Antibodies, Bispecific | 
              | Bifunctional Reagents use Cross-Linking Reagents | 
              | Big Cities use Large Cities | 
              | Biglycan | 
              | Bignonia caroba use Jacaranda caroba | 
              | Bignonia catalpa use Catalpa bignonoides | 
              | Bignonia sempervirens use Gelsemium sempervirens | 
              | Bignoniaceae | 
              | Biguanides | 
              | Bilateral Agreements | 
              | Bilateral Cooperation Programs | 
              | Bilateral Pacts use Bilateral Agreements | 
              | Bilateral Wilms Tumor use Wilms Tumor | 
              | Bilayer Fluidity use Membrane Fluidity | 
              | Bilayers, Lipid use Lipid Bilayers | 
              | Bilberry use Vaccinium myrtillus | 
              | Bile | 
              | Bile Acids and Salts | 
              | Bile Alcohols use Cholestanols | 
              | Bile Canaliculi | 
              | Bile Duct Cancer use Bile Duct Neoplasms | 
              | Bile Duct Diseases | 
              | Bile Duct Neoplasms | 
              | Bile Duct Obstruction use Cholestasis | 
              | Bile Duct Obstruction, Extrahepatic use Cholestasis, Extrahepatic | 
              | Bile Duct Obstruction, Intrahepatic use Cholestasis, Intrahepatic | 
              | Bile Ducts | 
              | Bile Ducts, Extrahepatic | 
              | Bile Ducts, Intrahepatic | 
              | Bile Pigments | 
              | Bile Reflux | 
              | Bile Salts use Bile Acids and Salts | 
              | Bilharzia use Schistosoma | 
              | Bilharziasis use Schistosomiasis | 
              | Biliary Atresia | 
              | Biliary Calculi use Gallstones | 
              | Biliary Cirrhosis use Liver Cirrhosis, Biliary | 
              | Biliary Cirrhosis, Primary use Liver Cirrhosis, Biliary | 
              | Biliary Cirrhosis, Secondary use Liver Cirrhosis, Biliary | 
              | Biliary Dyskinesia | 
              | Biliary Fistula | 
              | Biliary Sludge use Bile | 
              | Biliary Stasis use Cholestasis | 
              | Biliary Stasis, Extrahepatic use Cholestasis, Extrahepatic | 
              | Biliary Stasis, Intrahepatic use Cholestasis, Intrahepatic | 
              | Biliary Surgical Procedures use Biliary Tract Surgical Procedures | 
              | Biliary Tract | 
              | Biliary Tract Cancer use Biliary Tract Neoplasms | 
              | Biliary Tract Diseases | 
              | Biliary Tract Hemorrhage use Hemobilia | 
              | Biliary Tract Neoplasms | 
              | Biliary Tract Surgical Procedures | 
              | Bilingualism use Multilingualism | 
              | Bilinum use Fel tauri | 
              | Biliopancreatic Bypass use Biliopancreatic Diversion | 
              | Biliopancreatic Diversion | 
              | Bilious Temperament use Temperament | 
              | Bilirubin | 
              | Bilirubin Encephalopathy use Kernicterus | 
              | Bilirubinemia use Hyperbilirubinemia | 
              | Biliverdine | 
              | Bill, Avian use Beak | 
              | Billing | 
              | Bilobalides | 
              | Bilophila | 
              | Bilophila Infections use Desulfovibrionaceae Infections | 
              | Bindii use Tribulus terrestris | 
              | Binding Proteins use Carrier Proteins | 
              | Binding Sites | 
              | Binding Sites, Antibody | 
              | Binding, Competitive | 
              | Bindweed, False use Calystegia | 
              | Bindweed, Field use Convolvulus | 
              | Binet Test use Stanford-Binet Test | 
              | Binetrakin use Interleukin-4 | 
              | Binge-Eating Disorder | 
              | Biniodidum Hydrargyri use Mercurius Iodatus Ruber | 
              | Binocular Disparity use Vision Disparity | 
              | Binocular Vision use Vision, Binocular | 
              | Binomial Distribution | 
              | Binswanger Disease use Dementia, Vascular | 
              | Bio-Breeding Inbred Rats use Rats, Inbred BB | 
              | Bio-Engineering use Bioengineering | 
              | Bioabsorbable Implants use Absorbable Implants | 
              | Bioaccumulation | 
              | Bioartificial Liver use Liver, Artificial | 
              | Bioartificial Organs | 
              | Bioassay use Biological Assay | 
              | Bioavailability use Biological Availability | 
              | Biobibliography | 
              | Biobibliography as Topic | 
              | Biocatalysis | 
              | Biocenology | 
              | Biochemical Drugs use Schussler Salts | 
              | Biochemical Latrines use Latrines (Environmental Health) | 
              | Biochemical Markers use Biological Markers | 
              | Biochemical Oxygen Demand use Biological Oxygen Demand Analysis | 
              | Biochemical Phenomena | 
              | Biochemical Processes | 
              | Biochemical Reactions | 
              | Biochemistry | 
              | Biochemistry, Inorganic use Chemistry, Bioinorganic | 
              | Biocides use Pesticides | 
              | Biocompatibility Testing use Materials Testing | 
              | Biocompatible Materials | 
              | Biocompatible Materials Testing use Materials Testing | 
              | Bioconcentration use Bioaccumulation | 
              | Biocontrol use Pest Control, Biological | 
              | Bioconversion use Biodegradation, Environmental | 
              | Biodegradable Contaminants use Biodegradation, Environmental | 
              | Biodegradable Implants use Absorbable Implants | 
              | Biodegradable Wastes use Organic Wastes | 
              | Biodegradation, Environmental | 
              | Biodemographic Indicators use Demographic Indicators | 
              | Biodeterioration use Biodegradation, Environmental | 
              | Biodigesters use Biogas Digesters | 
              | Biodisks use Rotary Disks | 
              | Biodiversity | 
              | Bioelectric Energy Sources | 
              | Bioelectrical Impedance use Electric Impedance | 
              | Bioenergetics use Energy Metabolism | 
              | Bioengineering | 
              | Bioequivalence use Therapeutic Equivalency | 
              | Bioequivalent Drugs | 
              | Bioethical Issues | 
              | Bioethicists use Ethicists | 
              | Bioethics | 
              | Biofeedback (Psychology) use Biofeedback, Psychology | 
              | Biofeedback, Psychology | 
              | Biofilms | 
              | Biofilters use Biological Filters | 
              | Biofilters (Artificial Swamps) use Wetlands | 
              | Biofiltration, Acetate-Free use Hemodiafiltration | 
              | Bioflavonoids use Flavonoids | 
              | Biofouling | 
              | Biofuels | 
              | Biogas | 
              | Biogas Digesters | 
              | Biogenesis | 
              | Biogenic Amine Receptors use Receptors, Biogenic Amine | 
              | Biogenic Amine Transporters, Vesicular use Vesicular Biogenic Amine Transport Proteins | 
              | Biogenic Amines | 
              | Biogenic Monoamines | 
              | Biogenic Polyamines | 
              | Biogenic Stimulators use Tissue Therapy | 
              | Biogeochemical Cycle | 
              | Biogeography | 
              | Biography | 
              | Biography as Topic | 
              | Biohazard Release | 
              | Biohazards Containment use Containment of Biohazards | 
              | Bioinformatics use Computational Biology | 
              | Bioinorganic Chemistry use Chemistry, Bioinorganic | 
              | Biolistics | 
              | Biologic Oxidation | 
              | Biological Accidents and Events | 
              | Biological Accumulation use Bioaccumulation | 
              | Biological Agents Exposure use Exposure to Biological Agents | 
              | Biological Agriculture use Organic Agriculture | 
              | Biological Analysis | 
              | Biological Assay | 
              | Biological Availability | 
              | Biological Availability, Nutritional use Nutritive Value | 
              | Biological Clocks | 
              | Biological Communities | 
              | Biological Contamination | 
              | Biological Degradation use Biodegradation, Environmental | 
              | Biological Disaster | 
              | Biological Disks use Rotary Disks | 
              | Biological Diversity use Biodiversity | 
              | Biological Dressings | 
              | Biological Equilibrium | 
              | Biological Evolution | 
              | Biological Factors | 
              | Biological Film use Biofilms | 
              | Biological Filters | 
              | Biological Filtration use Biological Filters | 
              | Biological Gas use Biogas | 
              | Biological Indicators | 
              | Biological Layer use Biofilms | 
              | Biological Markers | 
              | Biological Markers, Pharmacological use Biomarkers, Pharmacological | 
              | Biological Monitoring use Environmental Monitoring | 
              | Biological Oceanography | 
              | Biological Oscillators use Biological Clocks | 
              | Biological Oxygen Demand use Biological Oxygen Demand Analysis | 
              | Biological Oxygen Demand Analyses use Biological Oxygen Demand Analysis | 
              | Biological Oxygen Demand Analysis | 
              | Biological Pest Control use Pest Control, Biological | 
              | Biological Phenomena | 
              | Biological Pollutants | 
              | Biological Process use Biological Processes | 
              | Biological Processes | 
              | Biological Products | 
              | Biological Psychiatry | 
              | Biological Pump use Membrane Transport Proteins | 
              | Biological Reactions | 
              | Biological Reactors use Bioreactors | 
              | Biological Recuperation use Bioremediation (Environmental Health) | 
              | Biological Science Disciplines | 
              | Biological Sciences use Biological Science Disciplines | 
              | Biological Specimen Banks | 
              | Biological Substance Banks use Biological Specimen Banks | 
              | Biological Terrorism use Bioterrorism | 
              | Biological Therapy | 
              | Biological Transport | 
              | Biological Transport, Active | 
              | Biological Treatment | 
              | Biological Warfare | 
              | Biological Warfare Agents | 
              | Biological Waste Disposal use Medical Waste Disposal | 
              | Biologics use Biological Products | 
              | Biology | 
              | Bioluminescent Proteins use Luminescent Proteins | 
              | Biomarkers, Pharmacological | 
              | Biomass | 
              | Biomaterials use Biocompatible Materials | 
              | Biomechanics | 
              | Biomedical and Dental Materials | 
              | Biomedical Device Recalls use Medical Device Recalls | 
              | Biomedical Device Safety Withdrawals use Safety-Based Medical Device Withdrawals | 
              | Biomedical Engineering | 
              | Biomedical Enhancement | 
              | Biomedical Research | 
              | Biomedical Technology | 
              | Biomedical Technology Control use Technology Control, Biomedical | 
              | Biometric Identification | 
              | Biometry | 
              | Biomimetic Devices use Biomimetic Materials | 
              | Biomimetic Materials | 
              | Biomimetics | 
              | Biomolecular Nuclear Magnetic Resonance use Nuclear Magnetic Resonance, Biomolecular | 
              | Biomphalaria | 
              | Bionator use Activator Appliances | 
              | Bionics | 
              | Bionomics use Ecology | 
              | Biopathographic Diagnosis | 
              | Biopathographical History | 
              | Biopathography use Biopathographical History | 
              | Biopathographyc Symptoms use Biopathographical History | 
              | Bioperiodicity use Periodicity | 
              | Biopharmaceutics | 
              | Biophysical Concepts use Biophysical Phenomena | 
              | Biophysical Phenomena | 
              | Biophysical Processes | 
              | Biophysics | 
              | Biopolymers | 
              | Bioprobes use Biosensing Techniques | 
              | Bioprosthesis | 
              | Biopsy | 
              | Biopsy, Chorionic Villi use Chorionic Villi Sampling | 
              | Biopsy, Fine-Needle | 
              | Biopsy, Needle | 
              | Biopsy, Sentinel Lymph Node use Sentinel Lymph Node Biopsy | 
              | Biopterin | 
              | Bioreactors | 
              | Bioremediation use Biodegradation, Environmental | 
              | Bioremediation (Environmental Health) | 
              | Biorestauration use Biodegradation, Environmental | 
              | Biorhythms use Periodicity | 
              | Biosafety use Exposure to Biological Agents | 
              | Biosatellites use Spacecraft | 
              | Biosensing Techniques | 
              | Biosensors use Biosensing Techniques | 
              | Biosphere | 
              | Biostatistics | 
              | Biosurveillance | 
              | Biosynthetic Pathways | 
              | Biosynthetic Proteins use Recombinant Proteins | 
              | Biota | 
              | Biotechnology | 
              | Bioterrorism | 
              | Biotherapics | 
              | Biotic Factors | 
              | Biotin | 
              | Biotin-Responsive Encephalopathy use Myoclonic Epilepsies, Progressive | 
              | Biotinidase | 
              | Biotinidase Deficiency | 
              | Biotinylation | 
              | Biotransformation | 
              | Biotreatment use Bioremediation (Environmental Health) | 
              | Biotyping, Bacterial use Bacterial Typing Techniques | 
              | Biotyping, Mycological use Mycological Typing Techniques | 
              | Biotypology | 
              | Biperiden | 
              | Biphenyl Compounds | 
              | Biphenylamines use Aminobiphenyl Compounds | 
              | Biphenyldiamines use Benzidines | 
              | Bipolar Cells, Retinal use Retinal Bipolar Cells | 
              | Bipolar Disorder | 
              | Bipyridyl use 2,2'-Dipyridyl | 
              | Birch use Betula | 
              | Bird Diseases | 
              | Bird Excrements use Guano australis | 
              | Bird Fancier's Lung | 
              | Bird Pox Virus use Avipoxvirus | 
              | Bird Proteins use Avian Proteins | 
              | Birdpox use Fowlpox | 
              | Birds | 
              | Birds of Prey use Raptors | 
              | Birefraction use Birefringence | 
              | Birefringence | 
              | BIREME use Latin American and Caribbean Center on Health Sciences Information | 
              | Birnaviridae | 
              | Birnaviridae Infections | 
              | Birt-Hogg-Dube Syndrome | 
              | Birth use Parturition | 
              | Birth Certificates | 
              | Birth Control use Contraception | 
              | Birth Defects use Congenital Abnormalities | 
              | Birth Injuries | 
              | Birth Intervals | 
              | Birth Order | 
              | Birth Rate | 
              | Birth Registration | 
              | Birth Spacing use Birth Intervals | 
              | Birth Statistics use Birth Rate | 
              | Birth Weight | 
              | Birthing Centers | 
              | Birthing Centers, Free-Standing use Birthing Centers | 
              | Birthing Centers, Hospital use Delivery Rooms | 
              | Birthwort use Aristolochia | 
              | Bis(4-Methyl-1-Homopiperazinylthiocarbonyl)disulfide | 
              | Bis(5'-Nucleosidyl)Oligophosphates use Dinucleoside Phosphates | 
              | Bis(5'-Nucleosidyl)Phosphates use Dinucleoside Phosphates | 
              | Bis(Chloromethyl) Ether | 
              | Bis-DEAE-Fluorenone use Tilorone | 
              | Bis-GMA use Bisphenol A-Glycidyl Methacrylate | 
              | Bis-GMA Polymer use Bisphenol A-Glycidyl Methacrylate | 
              | Bis-Trimethylammonium Compounds | 
              | Bisabol Myrrh use Commiphora | 
              | Bisacodyl | 
              | Bisbenzimidazole | 
              | Bisbenzimide use Bisbenzimidazole | 
              | Bisbenzylisoquinolines use Benzylisoquinolines | 
              | Biscyclohexanone Oxaldihydrazone use Cuprizone | 
              | Bisexuality | 
              | Bishydroxycoumarin use Dicumarol | 
              | Bismethyl Suberimidate use Dimethyl Suberimidate | 
              | Bismuth | 
              | Bismuth Valerate Monohydrate use Bismuthum Valerianicum | 
              | Bismuthi oxidum use Bismuthum Oxydatum | 
              | Bismuthum Metallicum | 
              | Bismuthum oxidum use Bismuthum Oxydatum | 
              | Bismuthum Oxydatum | 
              | Bismuthum Valerianicum | 
              | Bisnorephedrine use 2-Hydroxyphenethylamine | 
              | Bison | 
              | Bisoprolol | 
              | Bispecific Antibodies use Antibodies, Bispecific | 
              | Bisphenol A-Glycidyl Methacrylate | 
              | Bisphosphoglycerate Mutase | 
              | Bisphosphoglycerates use Diphosphoglyceric Acids | 
              | Bisphosphonates use Diphosphonates | 
              | Bistort use Polygonum | 
              | Bite Force | 
              | Bite Registration use Jaw Relation Record | 
              | Bites and Stings | 
              | Bites, Human | 
              | Bitewing Radiography use Radiography, Bitewing | 
              | Bithionol | 
              | Biting Stonecrop use Sedum acre | 
              | Bitis use Viperidae | 
              | Bitis arietans use Clotho arictans | 
              | Bitter Almond use Amygdalae amarae Aqua | 
              | Bitter Apple use Colocynthis | 
              | Bitter Buttons use Tanacetum vulgare | 
              | Bitter Candytuft use Iberis amara | 
              | Bitter Cucumber use Colocynthis | 
              | Bitter Gourd use Momordica charantia | 
              | Bitter Kola use Garcinia kola | 
              | Bitter Lettuce use Lactuca virosa | 
              | Bitter Nightshade use Dulcamara (Homeopathy) | 
              | Bitter Orange use Citrus aurantium | 
              | Bitter-Broom use Parthenium hysterophorus | 
              | Bitterbark use Alstonia constricta | 
              | Bittersweet Nightshade use Dulcamara (Homeopathy) | 
              | Bittner Virus use Mammary Tumor Virus, Mouse | 
              | Biureas | 
              | Biuret | 
              | Biuret Reaction | 
              | Bivalves use Bivalvia | 
              | Bivalvia | 
              | Bixa acuminata use Bixa orellana | 
              | Bixa orellana | 
              | Bixaceae | 
              | Bjerkandera use Coriolaceae | 
              | BK polyomavirus use BK Virus | 
              | BK Virus | 
              | Blaberidae use Cockroaches | 
              | Black Ape use Macaca | 
              | Black Arum use Arum dracunculus | 
              | Black Bears use Ursidae | 
              | Black Bryony use Tamus | 
              | Black Bugbane use Cimicifuga racemosa | 
              | Black cinnamon use Nectandra amare | 
              | Black Cohosh use Cimicifuga | 
              | Black Cumin use Nigella sativa | 
              | Black Currant use Ribes | 
              | Black Dragon use Arum dracunculus | 
              | Black Elder use Sambucus nigra | 
              | Black Fever use Leishmaniasis, Visceral | 
              | Black Fever, Amazon use Hepatitis D | 
              | Black Flies use Simuliidae | 
              | Black haw use Viburnum prunifolium | 
              | Black Hellebore use Helleborus niger | 
              | Black Henbane use Hyoscyamus niger | 
              | Black Lung Disease use Anthracosis | 
              | Black Mercury Sulfate use Aethiops Mineralis | 
              | Black Mustard use Sinapis nigra | 
              | Black Nightshade use Solanum nigrum | 
              | Black Pepper | 
              | Black Poui use Jacaranda gualanday | 
              | Black Sea | 
              | Black Snakeroot use Cimicifuga racemosa | 
              | Black Spider from Cuba use Mygale lasiodora | 
              | Black Spruce use Abies nigra | 
              | Black Tang use Fucus vesiculosus | 
              | Black Tany use Fucus vesiculosus | 
              | Black Tea use Thea sinensis (Homeopathy) | 
              | Black Widow Spider | 
              | Black Willow use Salix nigra | 
              | Black-Legged Tick use Ixodes | 
              | Blackboard Tree use Alstonia scholaris | 
              | Blackhaw Viburnum use Viburnum prunifolium | 
              | Blacks use African Continental Ancestry Group | 
              | Blacksamson use Echinacea angustifolia | 
              | Blacksamson Echinacea use Echinacea angustifolia | 
              | Blackwater Fever | 
              | Bladder use Urinary Bladder | 
              | Bladder Cancer use Urinary Bladder Neoplasms | 
              | Bladder Cherry use Physalis alkekengi | 
              | Bladder Diseases use Urinary Bladder Diseases | 
              | Bladder Disorder, Neurogenic use Urinary Bladder, Neurogenic | 
              | Bladder Drug Administration use Administration, Intravesical | 
              | Bladder Exstrophy | 
              | Bladder Fucus use Fucus vesiculosus | 
              | Bladder Neck Obstruction use Urinary Bladder Neck Obstruction | 
              | Bladder Neoplasms use Urinary Bladder Neoplasms | 
              | Bladderwrack use Fucus vesiculosus | 
              | Blade Implantation | 
              | Blalock-Taussig Procedure | 
              | Blast Crisis | 
              | Blast Injuries | 
              | Blast Phase use Blast Crisis | 
              | Blast Transformation use Lymphocyte Activation | 
              | Blast-2 Antigen, B-Cell use Antigens, Differentiation, B-Lymphocyte | 
              | Blastocladiella | 
              | Blastocladiomycota | 
              | Blastocrithidia use Trypanosomatina | 
              | Blastocyst | 
              | Blastocyst Disintegration use Embryo Loss | 
              | Blastocyst Implantation use Embryo Implantation | 
              | Blastocyst Implantation, Delayed use Embryo Implantation, Delayed | 
              | Blastocyst Inner Cell Mass | 
              | Blastocyst Transfer use Embryo Transfer | 
              | Blastocystina | 
              | Blastocystis | 
              | Blastocystis hominis | 
              | Blastocystis Infections | 
              | Blastocytes use Blastomeres | 
              | Blastoderm | 
              | Blastodisc | 
              | Blastogenesis use Lymphocyte Activation | 
              | Blastokinin use Uteroglobin | 
              | Blastoma, Pulmonary use Pulmonary Blastoma | 
              | Blastomeres | 
              | Blastomyces | 
              | Blastomyces brasiliensis use Paracoccidioides | 
              | Blastomycosis | 
              | Blastomycosis, North American use Blastomycosis | 
              | Blastomycosis, South American use Paracoccidioidomycosis | 
              | Blastopore use Gastrula | 
              | Blastula | 
              | Blatta americana | 
              | Blatta orientalis | 
              | Blattaria use Cockroaches | 
              | Blattellidae | 
              | Blattidae use Cockroaches | 
              | Blattodea use Cockroaches | 
              | Blazing Star use Aletris farinosa | 
              | Blazing-Star use Helonias dioica | 
              | Bleaches | 
              | Bleaching Agents | 
              | Blechnum use Ferns | 
              | Bleeding use Hemorrhage | 
              | Bleeding on Probing, Gingival use Periodontal Index | 
              | Bleeding Time | 
              | Bleeding Time, Template use Bleeding Time | 
              | Blennorrhea, Inclusion use Conjunctivitis, Inclusion | 
              | Bleomycin | 
              | Blepharitis | 
              | Blepharophimosis | 
              | Blepharoplasty | 
              | Blepharoptosis | 
              | Blepharospasm | 
              | Blepharospasm-Oromandibular Dystonia use Meige Syndrome | 
              | Blessed Milk Thistle use Carduus marianus (Homeopathy) | 
              | Blessed Thistle use Cnicus | 
              | Blighia | 
              | Blind Loop Syndrome | 
              | Blind Persons use Visually Impaired Persons | 
              | Blind Spot use Optic Disk | 
              | Blind-Deaf Disorders use Deaf-Blind Disorders | 
              | Blindness | 
              | Blindness, Cortical | 
              | Blindness, Legal use Blindness | 
              | Blindness, Monocular use Blindness | 
              | Blindness, Monocular, Transient use Amaurosis Fugax | 
              | Blinking | 
              | Blister | 
              | Bloch-Sulzberger Syndrome use Incontinentia Pigmenti | 
              | Blocking Antibodies use Antibodies, Blocking | 
              | Blogging | 
              | Blood | 
              | Blood Bactericidal Activity | 
              | Blood Banks | 
              | Blood Buffy Coat | 
              | Blood Cell Count | 
              | Blood Cell Count, Red use Erythrocyte Count | 
              | Blood Cell Count, White use Leukocyte Count | 
              | Blood Cell Number use Blood Cell Count | 
              | Blood Cells | 
              | Blood Cells, Red use Erythrocytes | 
              | Blood Cells, White use Leukocytes | 
              | Blood Chemical Analysis | 
              | Blood Circulation | 
              | Blood Circulation Time | 
              | Blood Circulation, Collateral use Collateral Circulation | 
              | Blood Clotting use Blood Coagulation | 
              | Blood Coagulation | 
              | Blood Coagulation Disorders | 
              | Blood Coagulation Disorders, Inherited | 
              | Blood Coagulation Factor Deficiencies use Coagulation Protein Disorders | 
              | Blood Coagulation Factor Inhibitors | 
              | Blood Coagulation Factor XIII, Activated use Factor XIIIa | 
              | Blood Coagulation Factors | 
              | Blood Coagulation Tests | 
              | Blood Coagulation Time, Whole use Whole Blood Coagulation Time | 
              | Blood Component Removal | 
              | Blood Component Transfusion | 
              | Blood Corpuscles use Blood Cells | 
              | Blood Corpuscles, Red use Erythrocytes | 
              | Blood Corpuscles, White use Leukocytes | 
              | Blood Count, Complete use Blood Cell Count | 
              | Blood Diseases use Hematologic Diseases | 
              | Blood Donors | 
              | Blood Doping use Doping in Sports | 
              | Blood Expanders use Plasma Substitutes | 
              | Blood Flow Velocity | 
              | Blood Flow, Renal, Effective use Renal Blood Flow, Effective | 
              | Blood Gas Analysis | 
              | Blood Gas Monitoring, Transcutaneous | 
              | Blood Glucose | 
              | Blood Glucose Self-Monitoring | 
              | Blood Group Antigens | 
              | Blood Group Incompatibility | 
              | Blood Grouping and Crossmatching | 
              | Blood Groups use Blood Group Antigens | 
              | Blood Loss, Postoperative use Postoperative Hemorrhage | 
              | Blood Loss, Surgical | 
              | Blood Patch, Epidural | 
              | Blood Physiologic Processes use Blood Physiological Processes | 
              | Blood Physiological Phenomena | 
              | Blood Physiological Processes | 
              | Blood Physiology use Blood Physiological Phenomena | 
              | Blood Plasma use Plasma | 
              | Blood Plasma Volume use Plasma Volume | 
              | Blood Platelet Count use Platelet Count | 
              | Blood Platelet Disorders | 
              | Blood Platelet Number use Platelet Count | 
              | Blood Platelet Transfusion use Platelet Transfusion | 
              | Blood Plateletpheresis use Plateletpheresis | 
              | Blood Platelets | 
              | Blood Preservation | 
              | Blood Preservation Plastic Bags use Plastic Bags for Blood Preservation | 
              | Blood Pressure | 
              | Blood Pressure Determination | 
              | Blood Pressure Monitoring, Ambulatory | 
              | Blood Pressure Monitors | 
              | Blood Pressure, High use Hypertension | 
              | Blood Pressure, Low use Hypotension | 
              | Blood Pressure, Venous use Venous Pressure | 
              | Blood Protein Disorders | 
              | Blood Protein Electrophoresis | 
              | Blood Proteins | 
              | Blood Safety | 
              | Blood Sedimentation | 
              | Blood Specimen Collection | 
              | Blood Stains | 
              | Blood Substitutes | 
              | Blood Sugar use Blood Glucose | 
              | Blood Sugar Self-Monitoring use Blood Glucose Self-Monitoring | 
              | Blood Tests use Hematologic Tests | 
              | Blood Transfusion | 
              | Blood Transfusion, Autologous | 
              | Blood Transfusion, Intrauterine | 
              | Blood Typing use Blood Grouping and Crossmatching | 
              | Blood Urea Nitrogen | 
              | Blood Vessel Prosthesis | 
              | Blood Vessel Prosthesis Implantation | 
              | Blood Vessel Tumors use Neoplasms, Vascular Tissue | 
              | Blood Vessels | 
              | Blood Viscosity | 
              | Blood Volume | 
              | Blood Volume Determination | 
              | Blood, Artificial use Blood Substitutes | 
              | Blood-Air Barrier | 
              | Blood-Aqueous Barrier | 
              | Blood-Borne Pathogens | 
              | Blood-Brain Barrier | 
              | Blood-Nerve Barrier | 
              | Blood-Retinal Barrier | 
              | Blood-Testis Barrier | 
              | Bloodleaf use Achyranthes calea | 
              | Bloodless Medical and Surgical Procedures | 
              | Bloodless Medicine and Surgery Programs use Bloodless Medical and Surgical Procedures | 
              | Bloodletting | 
              | Bloodroot use Sanguinaria | 
              | Bloodwoodtree use Haematoxylum campechianum | 
              | Bloodwort use Sanguinaria canadensis | 
              | Bloom Syndrome | 
              | Bloom-Torre-Machacek Syndrome use Bloom Syndrome | 
              | Blooms, Plant use Flowers | 
              | Blossoms use Flowers | 
              | Blotting, Far-Western | 
              | Blotting, Northern | 
              | Blotting, Southern | 
              | Blotting, Southwestern | 
              | Blotting, West-Western use Blotting, Far-Western | 
              | Blotting, Western | 
              | Blow-Out Fractures use Orbital Fractures | 
              | Blowoff Valves | 
              | Blue Algae use Cyanobacteria | 
              | Blue Bindweed use Dulcamara (Homeopathy) | 
              | Blue Cardinal Flower use Lobelia syphilitica | 
              | Blue Cohosh use Caulophyllum | 
              | Blue Crab use Brachyura | 
              | Blue Cross use Blue Cross Blue Shield Insurance Plans | 
              | Blue Cross Blue Shield Insurance Plans | 
              | Blue False Indigo use Baptisia confusa | 
              | Blue Garden Iris use Iris germanica | 
              | Blue Gum use Eucalyptus globulus | 
              | Blue Jacaranda use Jacaranda gualanday | 
              | Blue Lily use Iris versicolor | 
              | Blue Lobelia use Lobelia syphilitica | 
              | Blue Nevus use Nevus, Blue | 
              | Blue Nightshade use Dulcamara (Homeopathy) | 
              | Blue Sailors use Cichorium intybus (Homeopathy) | 
              | Blue Shield use Blue Cross Blue Shield Insurance Plans | 
              | Blue Toe Syndrome | 
              | Blue Verbena use Verbena hastata | 
              | Blue Vervain use Verbena hastata | 
              | Blue Waxweed use Cuphea viscosissima | 
              | Blue Whale use Balaenoptera | 
              | Blue Wild Indigo use Baptisia confusa | 
              | Blue-Eared Pig Disease use Porcine Reproductive and Respiratory Syndrome | 
              | Blue-Green Algae use Cyanobacteria | 
              | Blue-Green Bacteria use Cyanobacteria | 
              | Blue-Sensitive Cone Opsins use Cone Opsins | 
              | Bluebanded Sea Snake use Hydrophis cyanocinctus | 
              | Bluebell use Agraphis Nutans | 
              | Blueberry Plant | 
              | Bluecomb of Turkeys use Enteritis, Transmissible, of Turkeys | 
              | Bluecomb Virus use Coronavirus, Turkey | 
              | Bluegill use Perciformes | 
              | Bluegrass use Poa | 
              | Bluetongue | 
              | Bluetongue virus | 
              | Blunt Injuries use Wounds, Nonpenetrating | 
              | Blushing | 
              | BLV use Leukemia Virus, Bovine | 
              | BLV Antibodies use Deltaretrovirus Antibodies | 
              | BLV Antigens use Deltaretrovirus Antigens | 
              | BLV Infections use Deltaretrovirus Infections | 
              | BLV-HTLV Viruses use Deltaretrovirus | 
              | Bo-Tree use Ficus religiosa | 
              | Boa use Boidae | 
              | Board use Pulp and Paper Industry | 
              | Board, Governing use Governing Board | 
              | Boats use Ships | 
              | Bobbins use Arum maculatum | 
              | Bobcats use Lynx | 
              | Bobwhite use Colinus | 
              | Bocavirus | 
              | BOD use Biological Oxygen Demand Analysis | 
              | Bodily Secretions | 
              | Body Buffer Zone use Personal Space | 
              | Body Build use Somatotypes | 
              | Body Burden | 
              | Body Composition | 
              | Body Constitution | 
              | Body Dysmorphic Disorders | 
              | Body Fat Distribution | 
              | Body Fluid Compartments | 
              | Body Fluids | 
              | Body Height | 
              | Body Image | 
              | Body Language use Kinesics | 
              | Body Lice use Pediculus | 
              | Body Mass Index | 
              | Body Modification, Non-Therapeutic | 
              | Body of Water use Water Resources | 
              | Body Oils use Beauty Products | 
              | Body Patterning | 
              | Body Piercing | 
              | Body Regions | 
              | Body Rocking use Stereotypic Movement Disorder | 
              | Body Size | 
              | Body Surface Area | 
              | Body Surface Mapping use Body Surface Potential Mapping | 
              | Body Surface Potential Mapping | 
              | Body Temperature | 
              | Body Temperature Changes | 
              | Body Temperature Regulation | 
              | Body Types use Somatotypes | 
              | Body Water | 
              | Body Wave | 
              | Body Weight | 
              | Body Weight Changes | 
              | Body Weight, Fetal use Fetal Weight | 
              | Body Weights and Measures | 
              | Body, Human use Human Body | 
              | Boeck's Sarcoid use Sarcoidosis | 
              | Boehmeria | 
              | Boerhavia use Nyctaginaceae | 
              | Boesenbergia use Zingiberaceae | 
              | Bog Myrtle use Myrica | 
              | Bogland use Swamps | 
              | Bogs use Swamps | 
              | Bogus Physiological Feedback use Biofeedback, Psychology | 
              | Boidae | 
              | Boilers | 
              | Boils use Furunculosis | 
              | Boldo use Peumus | 
              | Boldon (Homeopathy) | 
              | Boletic Acid use Fumaricum Acidum | 
              | Boletus laricis | 
              | Boletus luridus | 
              | Boletus nigrescens use Boletus luridus | 
              | Boletus satanas | 
              | Bolivia | 
              | Bolus Alba use Alumina Silicata | 
              | Bomb use Ejecta | 
              | Bombacaceae | 
              | Bombax | 
              | Bombesin | 
              | Bombesin Receptors use Receptors, Bombesin | 
              | Bombina use Anura | 
              | Bombs | 
              | Bombs, Atomic use Nuclear Weapons | 
              | Bombs, Hydrogen use Nuclear Weapons | 
              | Bombyx | 
              | Bombyx chrysorrhea | 
              | Bombyx mori use Bombyx | 
              | Bombyx processionea | 
              | Bonaire use Netherlands Antilles | 
              | Bonamia ostreae use Haplosporida | 
              | Bonamia Plant | 
              | Bonamia spectabilis use Bonamia Plant | 
              | Bonbons | 
              | Bond Issues, Construction use Financing, Construction | 
              | Bond, Pair use Pair Bond | 
              | Bonding (Psychology) use Object Attachment | 
              | Bonding, Dental use Dental Bonding | 
              | Bonding, Human-Pet | 
              | Bondinneau Aqua | 
              | Bonds, Emotional use Object Attachment | 
              | Bone Age Measurement use Age Determination by Skeleton | 
              | Bone Anchors use Suture Anchors | 
              | Bone and Bones | 
              | Bone Banks | 
              | Bone Cancer use Bone Neoplasms | 
              | Bone Cements | 
              | Bone Conduction | 
              | Bone Cysts | 
              | Bone Cysts, Aneurysmal | 
              | Bone Demineralization Technique | 
              | Bone Demineralization, Pathologic | 
              | Bone Density | 
              | Bone Density Conservation Agents | 
              | Bone Development | 
              | Bone Diseases | 
              | Bone Diseases, Developmental | 
              | Bone Diseases, Endocrine | 
              | Bone Diseases, Infectious | 
              | Bone Diseases, Metabolic | 
              | Bone Dysplasias use Bone Diseases, Developmental | 
              | Bone Formation use Osteogenesis | 
              | Bone Fractures use Fractures, Bone | 
              | Bone Gla Protein use Osteocalcin | 
              | Bone Glues use Bone Cements | 
              | Bone Hypertrophy use Hyperostosis | 
              | Bone Inflammation use Osteitis | 
              | Bone Lengthening | 
              | Bone Loss, Age-Related use Osteoporosis | 
              | Bone Loss, Alveolar use Alveolar Bone Loss | 
              | Bone Loss, Osteoclastic use Bone Resorption | 
              | Bone Loss, Perimenopausal use Osteoporosis, Postmenopausal | 
              | Bone Loss, Periodontal use Alveolar Bone Loss | 
              | Bone Loss, Postmenopausal use Osteoporosis, Postmenopausal | 
              | Bone Malalignment | 
              | Bone Marrow | 
              | Bone Marrow Cell Transplantation use Bone Marrow Transplantation | 
              | Bone Marrow Cells | 
              | Bone Marrow Diseases | 
              | Bone Marrow Examination | 
              | Bone Marrow Neoplasms | 
              | Bone Marrow Purging | 
              | Bone Marrow Transplantation | 
              | Bone Marrow-Derived Macrophages use Macrophages | 
              | Bone Matrix | 
              | Bone Mineral Content use Bone Density | 
              | Bone Mineral Density use Bone Density | 
              | Bone Mineralization use Calcification, Physiologic | 
              | Bone Morphogenetic Protein 1 | 
              | Bone Morphogenetic Protein 15 | 
              | Bone Morphogenetic Protein 2 | 
              | Bone Morphogenetic Protein 3 | 
              | Bone Morphogenetic Protein 4 | 
              | Bone Morphogenetic Protein 5 | 
              | Bone Morphogenetic Protein 6 | 
              | Bone Morphogenetic Protein 7 | 
              | Bone Morphogenetic Protein Receptors | 
              | Bone Morphogenetic Protein Receptors, Type I | 
              | Bone Morphogenetic Protein Receptors, Type II | 
              | Bone Morphogenetic Proteins | 
              | Bone Nails | 
              | Bone Neoplasms | 
              | Bone Pastes use Bone Cements | 
              | Bone Pins use Bone Nails | 
              | Bone Plates | 
              | Bone Regeneration | 
              | Bone Remodeling | 
              | Bone Replacement Materials use Bone Substitutes | 
              | Bone Resorption | 
              | Bone Screws | 
              | Bone Spur use Osteophyte | 
              | Bone Substitutes | 
              | Bone Tissue use Bone and Bones | 
              | Bone Transplantation | 
              | Bone Tuberculosis use Tuberculosis, Osteoarticular | 
              | Bone Wires | 
              | Bone-Derived Transforming Growth Factor use Transforming Growth Factor beta | 
              | Bone-Patellar Tendon-Bone Graft | 
              | Bones of Arm use Arm Bones | 
              | Bones of Fingers use Finger Phalanges | 
              | Bones of Foot use Foot Bones | 
              | Bones of Hand use Hand Bones | 
              | Bones of Leg use Leg Bones | 
              | Bones of Lower Extremity | 
              | Bones of Toes use Toe Phalanges | 
              | Bones of Upper Extremity | 
              | Bongkrekic Acid | 
              | Bonin Islands use Tokyo | 
              | Bonnet Monkey use Macaca radiata | 
              | Bonnevie-Ullrich Syndrome use Turner Syndrome | 
              | Bonobo use Pan paniscus | 
              | Bonplandia trifoliata use Angustura vera | 
              | Bony Callus | 
              | Boobialla use Myoporum | 
              | Book Classification | 
              | Book Collecting | 
              | Book Illustration use Books, Illustrated | 
              | Book Illustrations | 
              | Book Imprints | 
              | Book Industry | 
              | Book Ornamentation | 
              | Book Prices | 
              | Book Reviews | 
              | Book Reviews as Topic | 
              | Book Selection | 
              | Bookbinding | 
              | Booklets use Pamphlets | 
              | Bookplates | 
              | Bookplates as Topic | 
              | Books | 
              | Books, Illustrated | 
              | Booksellers' Catalogs use Catalogs, Booksellers' | 
              | Bookselling | 
              | BOOP use Cryptogenic Organizing Pneumonia | 
              | BOR Syndrome use Branchio-Oto-Renal Syndrome | 
              | Borage use Borago | 
              | Boraginaceae | 
              | Borago | 
              | Boranes | 
              | Borates | 
              | Borax use Borax Veneta | 
              | Borax Veneta | 
              | Border Areas | 
              | Border Disease | 
              | Border disease virus | 
              | Border Health | 
              | Borderline Lepromatous use Leprosy, Multibacillary | 
              | Borderline Personality Disorder | 
              | Borderline Tuberculoid use Leprosy, Paucibacillary | 
              | Bordetella | 
              | Bordetella avium | 
              | Bordetella bronchiseptica | 
              | Bordetella Infections | 
              | Bordetella parapertussis | 
              | Bordetella pertussis | 
              | Bordetella Virulence Factors use Virulence Factors, Bordetella | 
              | Boredom | 
              | Borehole Latrines use Latrines (Environmental Health) | 
              | Boric Acids | 
              | Boricum Acidum | 
              | Borinic Acids | 
              | Borna Disease | 
              | Borna disease virus | 
              | Bornanes | 
              | Bornaviridae | 
              | Borneo | 
              | Bornholm Disease use Pleurodynia, Epidemic | 
              | Bornholm Disease Virus use Enterovirus B, Human | 
              | Borohydrides | 
              | Boron | 
              | Boron Compounds | 
              | Boron Hydrides use Boranes | 
              | Boron Neutron Capture Therapy | 
              | Boronic Acids | 
              | Borrelia | 
              | Borrelia afzelii use Borrelia burgdorferi Group | 
              | Borrelia burgdorferi | 
              | Borrelia burgdorferi Group | 
              | Borrelia burgdorferi sensu lato use Borrelia burgdorferi Group | 
              | Borrelia burgdorferi sensu stricto use Borrelia burgdorferi | 
              | Borrelia garinii use Borrelia burgdorferi Group | 
              | Borrelia Infections | 
              | Bos grunniens use Cattle | 
              | Bos indicus use Cattle | 
              | Bos taurus use Cattle | 
              | Bosnia and Hercegovina use Bosnia-Herzegovina | 
              | Bosnia-Herzegovina | 
              | Boston | 
              | Boswellia | 
              | Botany | 
              | Bothrops | 
              | Bothrops jararaca use Bothrops | 
              | Bothrops lanceolatus | 
              | Bothrops surucucu use Lachesis muta | 
              | Botrytis | 
              | Botswana | 
              | Bottle Feeding | 
              | Bottle-Nosed Dolphin | 
              | Bottled Water | 
              | Botulin use Botulinum Toxins | 
              | Botulinum | 
              | Botulinum Antitoxin | 
              | Botulinum Toxin Type A use Botulinum Toxins, Type A | 
              | Botulinum Toxins | 
              | Botulinum Toxins, Type A | 
              | Botulism | 
              | Botulism, Infantile use Botulism | 
              | Bougainvillea use Nyctaginaceae | 
              | Boulengerina use Cobra | 
              | Bounafa use Ferula glauca | 
              | Bourneville Disease use Tuberous Sclerosis | 
              | Boutonneuse Fever | 
              | Boutu use Delphinus amazonicus | 
              | Bouvardia use Rubiaceae | 
              | Bovine adenovirus D use Atadenovirus | 
              | Bovine coronavirus use Coronavirus, Bovine | 
              | Bovine Digital Dermatitis use Digital Dermatitis | 
              | Bovine encephalitis virus use Herpesvirus 5, Bovine | 
              | Bovine enterovirus use Enterovirus, Bovine | 
              | Bovine ephemeral fever virus use Ephemeral Fever Virus, Bovine | 
              | Bovine foamy virus use Spumavirus | 
              | Bovine Hemorrhagic Syndrome use Hemorrhagic Syndrome, Bovine | 
              | Bovine Herpes Mammillitis Virus use Herpesvirus 2, Bovine | 
              | Bovine herpesvirus 1 use Herpesvirus 1, Bovine | 
              | Bovine herpesvirus 2 use Herpesvirus 2, Bovine | 
              | Bovine herpesvirus 4 use Herpesvirus 4, Bovine | 
              | Bovine herpesvirus 5 use Herpesvirus 5, Bovine | 
              | Bovine immunodeficiency virus use Immunodeficiency Virus, Bovine | 
              | Bovine Kunitz Pancreatic Trypsin Inhibitor use Aprotinin | 
              | Bovine Lentiviruses use Lentiviruses, Bovine | 
              | Bovine Leukemia use Enzootic Bovine Leukosis | 
              | Bovine Leukemia Virus use Leukemia Virus, Bovine | 
              | Bovine Leukosis use Enzootic Bovine Leukosis | 
              | Bovine Lymphoma use Enzootic Bovine Leukosis | 
              | Bovine Lymphosarcoma use Enzootic Bovine Leukosis | 
              | Bovine papillomavirus 1 | 
              | Bovine papillomavirus 4 | 
              | Bovine parainfluenza virus 3 use Parainfluenza Virus 3, Bovine | 
              | Bovine Polyomavirus use Polyomavirus | 
              | Bovine Respiratory Disease Complex | 
              | Bovine respiratory syncytial virus use Respiratory Syncytial Virus, Bovine | 
              | Bovine Spongiform Encephalopathy use Encephalopathy, Bovine Spongiform | 
              | Bovine Syncytial Virus use Spumavirus | 
              | Bovine torovirus use Torovirus | 
              | Bovine Ulcerative Mammillitis Virus use Herpesvirus 2, Bovine | 
              | Bovine viral diarrhea virus 1 use Diarrhea Virus 1, Bovine Viral | 
              | Bovine viral diarrhea virus 2 use Diarrhea Virus 2, Bovine Viral | 
              | Bovine Viral Diarrhea Viruses use Diarrhea Viruses, Bovine Viral | 
              | Bovine Virus Diarrhea-Mucosal Disease | 
              | Bovista use Bovista lycoperdon | 
              | Bovista gigantea use Bovista lycoperdon | 
              | Bovista lycoperdon | 
              | Bowen's Disease | 
              | Bowhead Whale | 
              | Bowman Capsule | 
              | Bowman Membrane | 
              | Bowman-Birk Soybean Trypsin Inhibitor use Trypsin Inhibitor, Bowman-Birk Soybean | 
              | Bowstring-Hemp use Calotropis gigantea | 
              | Box Jellyfish use Cubozoa | 
              | Boxberry use Gaultheria procumbens | 
              | Boxes use Chambers | 
              | Boxfishes use Tetraodontiformes | 
              | Boxing | 
              | Boxwood use Buxus | 
              | Boyd Groups | 
              | BPTI, Basic Pancreatic Trypsin Inhibitor use Aprotinin | 
              | Braces | 
              | Brachial Artery | 
              | Brachial Plexopathy use Brachial Plexus Neuropathies | 
              | Brachial Plexus | 
              | Brachial Plexus Neuritis | 
              | Brachial Plexus Neuropathies | 
              | Brachial-Basilar Insufficiency Syndrome use Subclavian Steal Syndrome | 
              | Brachiaria | 
              | Brachiocephalic Trunk | 
              | Brachiocephalic Veins | 
              | Brachiopoda use Invertebrates | 
              | Brachmann-De Lange Syndrome use De Lange Syndrome | 
              | Brachydanio rerio use Zebrafish | 
              | Brachyglottis forsteri use Brachyglottis repens | 
              | Brachyglottis repens | 
              | Brachypodium | 
              | Brachyspira | 
              | Brachyspira hyodysenteriae | 
              | Brachyspira innocens use Brachyspira | 
              | Brachytherapy | 
              | Brachyura | 
              | Brackenfern use Pteridium | 
              | Braconid Viruses use Polydnaviridae | 
              | Bracyteles use Atelinae | 
              | Bradbury-Eggleston Syndrome use Pure Autonomic Failure | 
              | Bradyarrhythmia use Bradycardia | 
              | Bradycardia | 
              | Bradykinesia use Hypokinesia | 
              | Bradykinin | 
              | Bradykinin B1 Receptor use Receptor, Bradykinin B1 | 
              | Bradykinin B2 Receptor use Receptor, Bradykinin B2 | 
              | Bradykinin Receptors use Receptors, Bradykinin | 
              | Bradykinin Type 2 Receptor use Receptor, Bradykinin B2 | 
              | Bradyrhizobiaceae | 
              | Bradyrhizobium | 
              | Brahea serrulata use Sabal serrulatum | 
              | Brain | 
              | Brain Abscess | 
              | Brain Aneurysm use Intracranial Aneurysm | 
              | Brain Anoxia-Ischemia use Hypoxia-Ischemia, Brain | 
              | Brain Cancer use Brain Neoplasms | 
              | Brain Chemistry | 
              | Brain Concussion | 
              | Brain Contusion use Brain Injuries | 
              | Brain Damage, Chronic | 
              | Brain Dead use Brain Death | 
              | Brain Death | 
              | Brain Diseases | 
              | Brain Diseases, Arterial use Intracranial Arterial Diseases | 
              | Brain Diseases, Metabolic | 
              | Brain Diseases, Metabolic, Inborn | 
              | Brain Dysfunction, Minimal use Attention Deficit Disorder with Hyperactivity | 
              | Brain Edema | 
              | Brain Electrical Activity Mapping use Brain Mapping | 
              | Brain Embolism use Intracranial Embolism | 
              | Brain Embolism and Thrombosis use Intracranial Embolism and Thrombosis | 
              | Brain Hemorrhage use Intracranial Hemorrhages | 
              | Brain Hemorrhage, Cerebral use Cerebral Hemorrhage | 
              | Brain Hemorrhage, Cerebral, Traumatic use Cerebral Hemorrhage, Traumatic | 
              | Brain Hemorrhage, Putaminal use Putaminal Hemorrhage | 
              | Brain Hemorrhage, Traumatic | 
              | Brain Hypoxia use Hypoxia, Brain | 
              | Brain Hypoxia-Ischemia use Hypoxia-Ischemia, Brain | 
              | Brain Infarction | 
              | Brain Injuries | 
              | Brain Injuries, Penetrating use Head Injuries, Penetrating | 
              | Brain Injuries, Traumatic use Brain Injuries | 
              | Brain Injury, Chronic | 
              | Brain Ischemia | 
              | Brain Ischemia-Anoxia use Hypoxia-Ischemia, Brain | 
              | Brain Ischemia-Hypoxia use Hypoxia-Ischemia, Brain | 
              | Brain Lacerations use Brain Injuries | 
              | Brain Mapping | 
              | Brain Natriuretic Peptide use Natriuretic Peptide, Brain | 
              | Brain Neoplasms | 
              | Brain Pathology use Brain Diseases | 
              | Brain Revascularization use Cerebral Revascularization | 
              | Brain Stem | 
              | Brain Stem Auditory Evoked Potentials use Evoked Potentials, Auditory, Brain Stem | 
              | Brain Stem Hemorrhage, Traumatic | 
              | Brain Stem Implants, Auditory use Auditory Brain Stem Implants | 
              | Brain Stem Infarctions | 
              | Brain Stem Ischemia, Transient use Ischemic Attack, Transient | 
              | Brain Stem Neoplasms | 
              | Brain Stimulation, Deep use Deep Brain Stimulation | 
              | Brain Swelling use Brain Edema | 
              | Brain Thrombosis use Intracranial Thrombosis | 
              | Brain Tissue Transplantation | 
              | Brain Tumors use Brain Neoplasms | 
              | Brain Vascular Disorders use Cerebrovascular Disorders | 
              | Brain Waves | 
              | Brain-Blood Barrier use Blood-Brain Barrier | 
              | Brain-Derived Neurotrophic Factor | 
              | Brainwashing use Persuasive Communication | 
              | Brainwave Biofeedback use Neurofeedback | 
              | Brainwave Feedback use Neurofeedback | 
              | Branca ursina use Heracleum sphondylium | 
              | Branch Retinal Artery Occlusion use Retinal Artery Occlusion | 
              | Branched Chain Amino Acids for Athletes use Foods for Persons Engaged in Physical Activities | 
              | Branched DNA Signal Amplification Assay | 
              | Branched-Chain Ketoaciduria use Maple Syrup Urine Disease | 
              | Branched-Chain Oligosaccharides use Oligosaccharides, Branched-Chain | 
              | Brancher Deficiency use Glycogen Storage Disease Type IV | 
              | Branchial Arches use Branchial Region | 
              | Branchial Cleft Cyst use Branchioma | 
              | Branchial Clefts use Branchial Region | 
              | Branchial Cyst use Branchioma | 
              | Branchial Region | 
              | Branching Enzyme use 1,4-alpha-Glucan Branching Enzyme | 
              | Branchio-Oculo-Facial Syndrome use Branchio-Oto-Renal Syndrome | 
              | Branchio-Oto-Renal Syndrome | 
              | Branchio-Otorenal Dysplasia use Branchio-Oto-Renal Syndrome | 
              | Branchioma | 
              | Branchiura (Crustacea) use Arguloida | 
              | Branhamella catarrhalis use Moraxella (Branhamella) catarrhalis | 
              | Brassica | 
              | Brassica alba use Sinapis alba | 
              | Brassica juncea use Mustard Plant | 
              | Brassica napus | 
              | Brassica nigra use Sinapis nigra | 
              | Brassica rapa | 
              | Brassicaceae | 
              | Brauneria pallida use Echinacea angustifolia | 
              | Brayera use Kousso | 
              | Brayera anthelmintica use Kousso | 
              | Brazil | 
              | Brazil Nut Tree use Bertholletia | 
              | Brazil Nuts use Bertholletia | 
              | Brazilian Arrowroot use Manihot | 
              | Brazilian Box Tree use Aspidosperma | 
              | Brazilian Caroba-Tree use Jacaranda caroba | 
              | Brazilian Common Denomination | 
              | Brazilian Day Against Tobacco use Tobacco Control Campaigns | 
              | Brazilian Manatee use Trichechus inunguis | 
              | Brazilian No Tobacco Day use Tobacco Control Campaigns | 
              | Brazilian Non-Proprietary Name for Pharmaceutical Substance use Brazilian Common Denomination | 
              | Brazilian Non-Proprietary Names for Pharmaceutical Substances use Brazilian Common Denomination | 
              | Brazilian Nonproprietary Name for Pharmaceutical Substance use Brazilian Common Denomination | 
              | Brazilian Nonproprietary Name for Pharmaceutical Substances use Brazilian Common Denomination | 
              | Brazilian Nonproprietary Names for Pharmaceutical Substances use Brazilian Common Denomination | 
              | Brazilian Pharmacopeia | 
              | Brazilian Pharmacopoeia use Brazilian Pharmacopeia | 
              | Brazilian Unified Health System use Unified Health System | 
              | Brazilian Unified National Health System use Unified Health System | 
              | Brazilwood use Caesalpinia | 
              | BRCA1 Gene use Genes, BRCA1 | 
              | BRCA1 Gene Product use BRCA1 Protein | 
              | BRCA1 Protein | 
              | BRCA2 Gene use Genes, BRCA2 | 
              | BRCA2 Protein | 
              | BrdU use Bromodeoxyuridine | 
              | Bread | 
              | Breadfruit use Artocarpus | 
              | Breakbone Fever Virus use Dengue Virus | 
              | Breakpoint Chlorination | 
              | Breast | 
              | Breast Cancer use Breast Neoplasms | 
              | Breast Cancer 1 Gene Product use BRCA1 Protein | 
              | Breast Cancer 2 Gene Product use BRCA2 Protein | 
              | Breast Cancer Prevention | 
              | Breast Cancer Prevention Campaigns use Breast Cancer Prevention | 
              | Breast Cancer Prevention Programs use Breast Cancer Prevention | 
              | Breast Cyst | 
              | Breast Cysts use Breast Cyst | 
              | Breast Diseases | 
              | Breast Dysplasia use Fibrocystic Breast Disease | 
              | Breast Feeding | 
              | Breast Implantation | 
              | Breast Implants | 
              | Breast Milk use Milk, Human | 
              | Breast Milk Substitutes use Breast-Milk Substitutes | 
              | Breast Neoplasms | 
              | Breast Neoplasms, Male | 
              | Breast Prosthesis Implantation use Breast Implantation | 
              | Breast Prosthesis, Internal use Breast Implants | 
              | Breast Reconstruction use Mammaplasty | 
              | Breast Self-Examination | 
              | Breast Tumors use Breast Neoplasms | 
              | Breast Xeroradiography use Xeromammography | 
              | Breast-Conserving Surgery use Mastectomy, Segmental | 
              | Breast-Milk Substitutes | 
              | Breath Tests | 
              | Breathalyzer Tests use Breath Tests | 
              | Breathing use Respiration | 
              | Breathing Exercises | 
              | Breathing Mechanics use Respiratory Mechanics | 
              | Breathing Sounds use Respiratory Sounds | 
              | Breda Virus use Torovirus | 
              | Breech Presentation | 
              | Breeding | 
              | Breeze | 
              | Brefeldin A | 
              | Brenner Tumor | 
              | Brettanomyces | 
              | Bretylium Compounds | 
              | Bretylium Tosylate | 
              | Brevibacillus | 
              | Brevibacterium | 
              | Brevibacterium flavum | 
              | Brevican | 
              | Brevidensovirus use Densovirinae | 
              | Brewer's Yeast use Saccharomyces cerevisiae | 
              | Breweries use Brewery | 
              | Brewery | 
              | Bridged Compounds | 
              | Bridges | 
              | Brief Psychiatric Rating Scale | 
              | Bright Disease use Glomerulonephritis | 
              | Brill's Disease use Typhus, Epidemic Louse-Borne | 
              | Brill-Symmers Disease use Lymphoma, Follicular | 
              | Brill-Zinsser Disease use Typhus, Epidemic Louse-Borne | 
              | Brinase use Brinolase | 
              | Brindall berry use Gambogia | 
              | Brindleberry use Gambogia | 
              | Brine Shrimp use Artemia | 
              | Brinjal use Solanum melongena | 
              | Brinolase | 
              | Briquet Syndrome use Somatoform Disorders | 
              | Bristle-Coated Pits use Coated Pits, Cell-Membrane | 
              | Bristlegrass use Setaria Plant | 
              | British Columbia | 
              | British Guiana use Guyana | 
              | British Honduras use Belize | 
              | Brn-3 Transcription Factor use Transcription Factor Brn-3 | 
              | Brn-3A Transcription Factor use Transcription Factor Brn-3A | 
              | Brn-3B Transcription Factor use Transcription Factor Brn-3B | 
              | Brn-3c Transcription Factor use Transcription Factor Brn-3C | 
              | Broad beta Disease use Hyperlipoproteinemia Type III | 
              | Broad Ligament | 
              | Broad Thumb-Hallux Syndrome use Rubinstein-Taybi Syndrome | 
              | Broad-Leaved Asarabaccais use Asarum canadense | 
              | Broadleaf Paperbark use Cajuputum | 
              | Broadleaf Teatree use Cajuputum | 
              | Broadsides | 
              | Broadsides as Topic | 
              | Broca Aphasia use Aphasia, Broca | 
              | Broca Area use Frontal Lobe | 
              | Broccoli use Brassica | 
              | Brochothrix | 
              | Brochures use Pamphlets | 
              | Brock's Syndrome use Middle Lobe Syndrome | 
              | Brocresine | 
              | BROD use Cytochrome P-450 CYP2B1 | 
              | Bromates | 
              | Bromatology use Food Analysis | 
              | Bromazepam | 
              | Bromcresol Green | 
              | Bromcresol Purple | 
              | Brome use Bromus | 
              | Brome mosaic virus use Bromovirus | 
              | Bromegrass use Bromus | 
              | Bromelains | 
              | Bromelia | 
              | Bromeliaceae | 
              | Bromelins use Bromelains | 
              | Bromhexine | 
              | Bromhexine Metabolite VIII use Ambroxol | 
              | Bromides | 
              | Brominated Hydrocarbons use Hydrocarbons, Brominated | 
              | Brominated Steroids use Steroids, Brominated | 
              | Bromination use Halogenation | 
              | Bromination (Environmental Health) | 
              | Bromine | 
              | Bromine Compounds | 
              | Bromine Iodide use Bromium Iodatum | 
              | Bromine Radioisotopes | 
              | Bromisoval use Bromisovalum | 
              | Bromisovalum | 
              | Bromium | 
              | Bromium Iodatum | 
              | Bromobenzenes | 
              | Bromobenzoates | 
              | Bromocriptine | 
              | Bromocryptin use Bromocriptine | 
              | Bromodeoxycytidine | 
              | Bromodeoxyuridine | 
              | Bromosuccinimide | 
              | Bromotrichloromethane | 
              | Bromouracil | 
              | Bromouracil Deoxyriboside use Bromodeoxyuridine | 
              | Bromovalcarbamide use Bromisovalum | 
              | Bromovalerylurea use Bromisovalum | 
              | Bromoviridae | 
              | Bromovirus | 
              | Brompheniramine | 
              | Bromphenol Blue | 
              | Bromsulphalein use Sulfobromophthalein | 
              | Bromthymol Blue | 
              | Bromum use Bromium | 
              | Bromus | 
              | Bronchi | 
              | Bronchial Allergen Challenge use Bronchial Provocation Tests | 
              | Bronchial Arteries | 
              | Bronchial Asthma use Asthma | 
              | Bronchial Challenge Tests use Bronchial Provocation Tests | 
              | Bronchial Constriction use Bronchoconstriction | 
              | Bronchial Cyst use Bronchogenic Cyst | 
              | Bronchial Diseases | 
              | Bronchial Fistula | 
              | Bronchial Hyperreactivity | 
              | Bronchial Lavage use Bronchoalveolar Lavage | 
              | Bronchial Lavage Fluid use Bronchoalveolar Lavage Fluid | 
              | Bronchial Neoplasms | 
              | Bronchial Provocation Tests | 
              | Bronchial Spasm | 
              | Bronchial-Constricting Agents use Bronchoconstrictor Agents | 
              | Bronchial-Dilating Agents use Bronchodilator Agents | 
              | Bronchiectasis | 
              | Bronchioles | 
              | Bronchiolitis | 
              | Bronchiolitis Obliterans | 
              | Bronchiolitis Obliterans Organizing Pneumonia use Cryptogenic Organizing Pneumonia | 
              | Bronchiolitis, Exudative use Bronchiolitis Obliterans | 
              | Bronchiolitis, Proliferative use Bronchiolitis Obliterans | 
              | Bronchiolitis, Viral | 
              | Bronchitis | 
              | Bronchitis, Chronic | 
              | Bronchoalveolar Lavage | 
              | Bronchoalveolar Lavage Fluid | 
              | Bronchoconstriction | 
              | Bronchoconstrictor Agents | 
              | Bronchodilator Agents | 
              | Bronchogenic Cyst | 
              | Bronchography | 
              | Bronchomalacia | 
              | Bronchopneumonia | 
              | Bronchopulmonary Aspergillosis use Pulmonary Aspergillosis | 
              | Bronchopulmonary Dysplasia | 
              | Bronchopulmonary Sequestration | 
              | Bronchoscopes | 
              | Bronchoscopic Surgical Procedures use Bronchoscopy | 
              | Bronchoscopy | 
              | Bronchospasm use Bronchial Spasm | 
              | Bronchospasm, Exercise-Induced use Asthma, Exercise-Induced | 
              | Bronchospirometry | 
              | Brooklime use Veronica beccabunga | 
              | Broom use Cytisus | 
              | Broom Rape use Orobanche | 
              | Broom, Butcher's use Ruscus | 
              | Broom, Desert use Baccharis | 
              | Broom, Dyers use Genista | 
              | Broom, Scotch use Cytisus | 
              | Broom, Spanish use Spartium | 
              | Broomrape use Orobanche | 
              | Brosimum use Moraceae | 
              | Brosimum gaudichaudii | 
              | Broussonetia | 
              | Brown Dog Tick use Rhipicephalus sanguineus | 
              | Brown Fat use Adipose Tissue, Brown | 
              | Brown Sugar use Sugar | 
              | Brown Tendon Sheath Syndrome use Ocular Motility Disorders | 
              | Brown-Sequard Syndrome | 
              | Browning Reaction use Maillard Reaction | 
              | Broxuridine use Bromodeoxyuridine | 
              | Brucea | 
              | Brucea antidysenterica | 
              | Brucea ferruginea use Brucea antidysenterica | 
              | Brucella | 
              | Brucella abortus | 
              | Brucella canis | 
              | Brucella melitensis | 
              | Brucella ovis | 
              | Brucella suis | 
              | Brucella Vaccine | 
              | Brucellaceae | 
              | Brucellosis | 
              | Brucellosis, Bovine | 
              | Bruch Membrane | 
              | Brucia use Brucinum | 
              | Brucine use Brucinum | 
              | Brucine Tetrahydrate use Brucinum | 
              | Brucinum | 
              | Brucite use Magnesium Hydroxide | 
              | Brueghel Syndrome use Meige Syndrome | 
              | Brugada Syndrome | 
              | Brugia | 
              | Brugia malayi | 
              | Brugia pahangi | 
              | Brugmansia use Solanaceae | 
              | Brugmansia arborea use Datura arborea | 
              | Brugmansia candida use Datura arborea | 
              | Brugmansia chlorantha use Datura metel | 
              | Brugmansia sanguinea use Datura sanguinea | 
              | Brugmansia waymannii use Datura metel | 
              | Bruguiera use Rhizophoraceae | 
              | Bruise use Contusions | 
              | Brunei | 
              | Brunei Darussalam use Brunei | 
              | Bruneomycin use Streptonigrin | 
              | Brunfelsia hopeana use Franciscaea uniflora | 
              | Brunfelsia uniflora use Franciscaea uniflora | 
              | Brunhilde Virus use Poliovirus | 
              | Brunner Glands | 
              | Bruns' Apraxia of Gait use Gait Apraxia | 
              | Brush Border use Microvilli | 
              | Brussel Sprout use Brassica | 
              | Bruxism | 
              | Bruxism, Nocturnal use Sleep Bruxism | 
              | Bryde's Whale use Balaenoptera | 
              | Bryonia | 
              | Bryonia alba | 
              | Bryonia cretica dioica use Bryonia dioica | 
              | Bryonia dioica | 
              | Bryony use Bryonia | 
              | Bryony of France use Bryonia dioica | 
              | Bryony, Black use Tamus | 
              | Bryophyllum use Kalanchoe | 
              | Bryophyta | 
              | Bryopsida | 
              | Bryostatins | 
              | Bryozoa | 
              | BTMs use Behind-the-Counter Drugs | 
              | Bubalus use Buffaloes | 
              | Bubonic Plague use Plague | 
              | Bucca use Cheek | 
              | Buccal Drug Administration use Administration, Buccal | 
              | Buccal Mucosa use Mouth Mucosa | 
              | Bucco use Barosma crenulatum | 
              | Buchnera | 
              | Buchnera aphidicola use Buchnera | 
              | Buchu use Barosma crenulatum | 
              | Buchu Resin use Diosmin | 
              | Buckeye use Aesculus | 
              | Buckthorn, Sea use Hippophae | 
              | Buckwheat use Fagopyrum | 
              | Buckwheat, False use Polygonum | 
              | Buckwheat, Red use Eriogonum | 
              | Buckwheat, Wild use Eriogonum | 
              | Buckyballs use Fullerenes | 
              | Buckytubes use Nanotubes, Carbon | 
              | Bucladesine | 
              | Bucrylate | 
              | Budd-Chiari Syndrome | 
              | Buddhism | 
              | Budding Yeast use Saccharomycetales | 
              | Buddleja | 
              | Budesonide | 
              | Budgerigar Fancier's Lung use Bird Fancier's Lung | 
              | Budgerigars use Melopsittacus | 
              | Budgetary Control use Budgets | 
              | Budgets | 
              | BUdR use Bromodeoxyuridine | 
              | Buerger Disease use Thromboangiitis Obliterans | 
              | Bufanolides | 
              | Bufeo use Delphinus amazonicus | 
              | Bufeo Colorado use Delphinus amazonicus | 
              | Bufexamac | 
              | Buffalo Grass use Anthoxanthum odoratum | 
              | Buffalo, American use Bison | 
              | Buffaloberry use Elaeagnaceae | 
              | Buffaloes | 
              | Buffalopox Virus use Vaccinia virus | 
              | Buffers | 
              | Bufo use Bufonidae | 
              | Bufo arenarum | 
              | Bufo bufo | 
              | Bufo marinus | 
              | Bufo rana | 
              | Bufo sahytiensis | 
              | Bufonidae | 
              | Buformin | 
              | Bufotenin | 
              | Bug Agaric use Agaricus muscarius | 
              | Bugbane use Actaea | 
              | Bugbane, Black use Cimicifuga | 
              | Bugle use Ajuga | 
              | Bugleweed use Lycopus | 
              | Building Codes | 
              | Building Connections use Sanitary Installations | 
              | Building Industry use Construction Industry | 
              | Building Specifications | 
              | Buildings | 
              | Buildings Damage Classification | 
              | Buildings Destruction | 
              | Buildings Reconstruction | 
              | Bulbar Conjunctiva use Conjunctiva | 
              | Bulbar Palsy, Progressive | 
              | Bulbar Poliomyelitis use Poliomyelitis, Bulbar | 
              | Bulbine use Liliaceae | 
              | Bulbo-Spinal Atrophy, X-Linked | 
              | Bulbospinal Neuronopathy use Muscular Atrophy, Spinal | 
              | Bulbourethral Glands | 
              | Bulbous Buttercup use Ranunculus bulbosus | 
              | Bulgaria | 
              | Bulimia | 
              | Bulimia Nervosa | 
              | Bulinus | 
              | Bulking Agent use Bulking Agents | 
              | Bulking Agents | 
              | Bull Bay use Magnolia grandiflora | 
              | Bulla use Blister | 
              | Bullfrog use Rana catesbeiana | 
              | Bullous Skin Diseases use Skin Diseases, Vesiculobullous | 
              | Bullying | 
              | Bumetanide | 
              | BUN use Blood Urea Nitrogen | 
              | Bunaftine | 
              | Bunaphtide use Bunaftine | 
              | Bund use Dykes | 
              | Bundle of His | 
              | Bundle of Kent use Accessory Atrioventricular Bundle | 
              | Bundle-Branch Block | 
              | Bungarotoxins | 
              | Bungarus | 
              | Bungarus fasciatus | 
              | Bunias orientalis | 
              | Bunias perennis use Bunias orientalis | 
              | Bunion use Hallux Valgus | 
              | Bunion, Tailor's | 
              | Bunionette use Bunion, Tailor's | 
              | Bunium carvi use Carum carvi | 
              | Bunolol use Levobunolol | 
              | Bunostomiasis use Hookworm Infections | 
              | Bunostomum use Ancylostomatoidea | 
              | Bunyamwera virus | 
              | Bunyaviridae | 
              | Bunyaviridae Infections | 
              | Bunyavirus use Orthobunyavirus | 
              | Bunyavirus Infections use Bunyaviridae Infections | 
              | Buphthalmos use Hydrophthalmos | 
              | Bupivacaine | 
              | Bupleurum | 
              | Bupranolol | 
              | Buprenorphine | 
              | Bupropion | 
              | Burden of Illness use Cost of Illness | 
              | Burdock Plant use Arctium | 
              | Burdock, Greater use Arctium | 
              | Burdock, Lesser use Arctium | 
              | Burgess Virus use Echovirus 6, Human | 
              | Burial | 
              | Burimamide | 
              | Burkholderia | 
              | Burkholderia cenocepacia | 
              | Burkholderia cepacia | 
              | Burkholderia cepacia complex | 
              | Burkholderia cocovenenans use Burkholderia gladioli | 
              | Burkholderia gladioli | 
              | Burkholderia Infections | 
              | Burkholderia mallei | 
              | Burkholderia pseudomallei | 
              | Burkholderiaceae | 
              | Burkina Faso | 
              | Burkitt Cell Leukemia use Burkitt Lymphoma | 
              | Burkitt Herpesvirus use Herpesvirus 4, Human | 
              | Burkitt Lymphoma | 
              | Burkitt Lymphoma Virus use Herpesvirus 4, Human | 
              | Burkitt Tumor use Burkitt Lymphoma | 
              | Burma use Myanmar | 
              | Burn Centers use Burn Units | 
              | Burn Units | 
              | Burnet use Sanguisorba | 
              | Burning Bush use Euonymus atropurpurea | 
              | Burning Mouth Syndrome | 
              | Burning-Bush use Dictamnus albus | 
              | Burningbush (Bassia) use Bassia scoparia | 
              | Burningbush (Euonymus) use Euonymus | 
              | Burnout, Professional | 
              | Burns | 
              | Burns, Chemical | 
              | Burns, Electric | 
              | Burns, Inhalation | 
              | Burnt Lime use Calcium Oxide | 
              | Burnweed use Erechtites hieracifolia | 
              | Burra Gokharu use Tribulus terrestris | 
              | Bursa of Fabricius | 
              | Bursa pastoris use Thlaspi bursa pastoris | 
              | Bursa, Synovial | 
              | Bursa-Dependent Lymphocytes use B-Lymphocytes | 
              | Bursera | 
              | Burseraceae | 
              | Bursine use Choline | 
              | Bursitis | 
              | Burst-Forming Units, Erythroid use Erythroid Precursor Cells | 
              | Burst-Promoting Factor, Erythrocyte use Interleukin-3 | 
              | Buruli Ulcer | 
              | Burundi | 
              | Buserelin | 
              | Bush Babies use Galago | 
              | Bush Clover use Lespedeza | 
              | Bushmaster use Viperidae | 
              | Business use Commerce | 
              | Business Coalitions (Health Care) use Health Care Coalitions | 
              | Business to Business Sales Products use Products of Institution Restricted Sale | 
              | Business to Consumers Sales Products use Products of Consumer Direct Sale | 
              | Buspirone | 
              | Busulfan | 
              | Busulphan use Busulfan | 
              | Butaclamol | 
              | Butadienes | 
              | Butamide Brand of Tolbutamide use Tolbutamide | 
              | Butanediols use Butylene Glycols | 
              | Butanes | 
              | Butanoic Acids use Butyric Acids | 
              | Butanols | 
              | Butanones | 
              | Butcher's Broom use Ruscus | 
              | Butea | 
              | Butenedioic Acid use Fumaricum Acidum | 
              | Buthionine Sulfoximine | 
              | Buthus afer | 
              | Buthus australis | 
              | Buthus occitanus | 
              | Butirosin Sulfate | 
              | Butirosins use Butirosin Sulfate | 
              | Butorphanol | 
              | Butoxamine | 
              | Butter | 
              | Butter Yellow use p-Dimethylaminoazobenzene | 
              | Butterbur use Petasites | 
              | Buttercup Anemone use Anemone ranunculoides | 
              | Butterflies | 
              | Butterfly Valves | 
              | Butterfly Weed use Asclepias tuberosa | 
              | Buttermilk use Cultured Milk Products | 
              | Butternut use Juglans cinerea | 
              | Butterweed use Erigeron canadensis | 
              | Buttocks | 
              | Button Snake-Root use Eryngium aquaticum | 
              | Button-Cell Batteries | 
              | Butyl Methyl Ketones use Hexanones | 
              | Butyl Phthalate use Dibutyl Phthalate | 
              | Butylamines | 
              | Butylated Hydroxyanisole | 
              | Butylated Hydroxytoluene | 
              | Butylbiguanide use Buformin | 
              | Butylcarbamide use Carbutamide | 
              | Butylcyanoacrylate use Enbucrilate | 
              | Butylene Glycols | 
              | Butylhydroxyanisole use Butylated Hydroxyanisole | 
              | Butylhydroxybutylnitrosamine | 
              | Butylhydroxytoluene use Butylated Hydroxytoluene | 
              | Butylmethyl Ketone use Methyl n-Butyl Ketone | 
              | Butylscopolammonium Bromide | 
              | Butyrate use Butyrates | 
              | Butyrate Response Factor 1 | 
              | Butyrates | 
              | Butyribacterium use Eubacterium | 
              | Butyric Acid | 
              | Butyric Acids | 
              | Butyricum Acidum | 
              | Butyrivibrio | 
              | Butyrophenones | 
              | Butyryl-CoA Dehydrogenase | 
              | Butyrylcholinesterase | 
              | Butyrylthiocholine | 
              | Buxaceae | 
              | Buxo use Buxus sempervirens | 
              | Buxus | 
              | Buxus angustifolia use Buxus sempervirens | 
              | Buxus sempervirens | 
              | BVDV-1 use Diarrhea Virus 1, Bovine Viral | 
              | BVDV-2 use Diarrhea Virus 2, Bovine Viral | 
              | BVP-1 use Bovine papillomavirus 1 | 
              | BVP-4 use Bovine papillomavirus 4 | 
              | Byelarus use Republic of Belarus | 
              | Byelorussian S.S.R. use Republic of Belarus | 
              | Bylaws use Constitution and Bylaws | 
              | Bylaws (Health Law) | 
              | Bymovirus use Potyviridae | 
              | Bypass, Coronary Artery use Coronary Artery Bypass | 
              | Bypass, Left Heart use Heart Bypass, Left | 
              | Bypass, Right Heart use Heart Bypass, Right | 
              | Byssinosis | 
              | Byssochlamys | 
              | Bystander Effect | 
              | Byzantine Empire use Byzantium | 
              | Byzantium | 
              | bZIP G-Box Binding Factors use Basic-Leucine Zipper Transcription Factors |