DeCS 
    2008 - March 17, 2008 version
    
       
        |  Alphabetic 
          Index of Descriptors   
           
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        |  | 
 | 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 Light Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Light Chain | 
| B-Lymphocyte Subsets | 
| 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 mu Chain Gene Rearrangement use Gene Rearrangement, B-Lymphocyte, Heavy Chain | 
| 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 | 
| BAFF Ligand use B-Cell Activating Factor | 
| BALB 3T3 Cells | 
| BAPNA use Benzoylarginine Nitroanilide | 
| BB Wistar Rats use Rats, Inbred BB | 
| BCG use Mycobacterium bovis | 
| BCG Vaccine | 
| BCNU use Carmustine | 
| BDNF use Brain-Derived Neurotrophic Factor | 
| BDNF Receptor use Receptor, trkB | 
| BH3 Interacting Domain Death Agonist Protein | 
| BHM Virus use Herpesvirus 2, Bovine | 
| BIREME use Latin American and Caribbean Center on Health Sciences Information | 
| BK Virus | 
| BK polyomavirus use BK Virus | 
| 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 | 
| BOD use Biochemical Oxygen Demand | 
| BOOP use Bronchiolitis Obliterans Organizing Pneumonia | 
| BOR Syndrome use Branchio-Oto-Renal Syndrome | 
| BPTI, Basic Pancreatic Trypsin Inhibitor use Aprotinin | 
| BRCA1 Gene use Genes, BRCA1 | 
| BRCA1 Gene Product use BRCA1 Protein | 
| BRCA1 Protein | 
| BRCA2 Gene use Genes, BRCA2 | 
| BRCA2 Protein | 
| BROD use Cytochrome P-450 CYP2B1 | 
| BUN use Blood Urea Nitrogen | 
| BUdR use Bromodeoxyuridine | 
| 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 | 
| Babanki virus use Sindbis Virus | 
| Babaçu Coconut Fat use Vegetable Fats | 
| 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 Drugs | 
| Bach Intestinal Bacillus use Bacillus Bach-Paterson | 
| Bacillaceae | 
| Bacillaceae Infections | 
| Bacillariophyta use Diatoms | 
| Bacillary Angiomatosis use Angiomatosis, Bacillary | 
| Bacillinum 10 | 
| Bacillinum 7 | 
| Bacillinum burnett | 
| Bacillinum testium | 
| Bacillus | 
| Bacillus Bach-Paterson | 
| Bacillus Calmette Guerin Vaccine use BCG Vaccine | 
| Bacillus Gaertner | 
| Bacillus Morgan Gaertner | 
| Bacillus Morgan Puro | 
| Bacillus Morgan x | 
| Bacillus Phages | 
| Bacillus anthracis | 
| Bacillus calmette-guerin use Vaccin attenue bilie | 
| Bacillus cereus | 
| Bacillus dysenteriae | 
| Bacillus faecalis | 
| Bacillus megaterium | 
| Bacillus mutabilis | 
| Bacillus proteus | 
| Bacillus 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 Colony Count, Microbial | 
| Bacterial DNA use DNA, Bacterial | 
| Bacterial Die-Off use T90 | 
| 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 Meningitis use Meningitis, Bacterial | 
| Bacterial Outer Membrane Proteins | 
| Bacterial Physiology | 
| Bacterial Pili use Fimbriae, Bacterial | 
| Bacterial Polysaccharides use Polysaccharides, Bacterial | 
| Bacterial Proteins | 
| Bacterial Proton-Translocating ATPases | 
| Bacterial RNA use RNA, Bacterial | 
| Bacterial Rhodopsins use Rhodopsins, Microbial | 
| Bacterial Sensitivity Tests use Microbial Sensitivity Tests | 
| Bacterial Spores use Spores, Bacterial | 
| 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 G4 use Microvirus | 
| Bacteriophage HK022 | 
| Bacteriophage IKe | 
| Bacteriophage M13 | 
| Bacteriophage MS2 use Levivirus | 
| Bacteriophage N4 | 
| Bacteriophage P1 | 
| Bacteriophage P1 Artificial Chromosomes use Chromosomes, Artificial, P1 Bacteriophage | 
| Bacteriophage P2 | 
| Bacteriophage P22 | 
| Bacteriophage PM2 use Corticoviridae | 
| Bacteriophage PRD1 | 
| Bacteriophage Pf1 | 
| Bacteriophage Q beta use Allolevivirus | 
| Bacteriophage T2 use Bacteriophage T4 | 
| Bacteriophage T3 | 
| Bacteriophage T4 | 
| Bacteriophage T7 | 
| Bacteriophage Typing | 
| Bacteriophage fd use Bacteriophage M13 | 
| Bacteriophage lambda | 
| Bacteriophage mu | 
| Bacteriophage phi 105 use Bacillus Phages | 
| Bacteriophage phi 29 use Bacillus Phages | 
| Bacteriophage phi 6 | 
| Bacteriophage phi X 174 | 
| Bacteriophages | 
| Bacteriophages T use T-Phages | 
| Bacteriophages, Filamentous use Inovirus | 
| Bacteriophages, RNA use RNA Phages | 
| Bacteriorhodopsins | 
| Bacteriuria | 
| Bacteroidaceae | 
| Bacteroidaceae Infections | 
| Bacteroides | 
| Bacteroides Infections | 
| Bacteroides corrodens use Eikenella corrodens | 
| Bacteroides fragilis | 
| Bacteroides gingivalis use Porphyromonas gingivalis | 
| 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 | 
| Bag Filters | 
| Bagassosis use Pneumoconiosis | 
| 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 | 
| Balanites | 
| Balanitis | 
| Balanitis Xerotica Obliterans | 
| Balanophoraceae | 
| Balantidiasis | 
| Balantidium | 
| Balanus use Thoracica | 
| 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 Dilatation | 
| Balloon Dilatation | 
| Balloon Dilatation, Coronary Artery use Angioplasty, Transluminal, Percutaneous Coronary | 
| Balloon Flower use Platycodon | 
| Balloon Occlusion | 
| Balloon Tamponade use Balloon Dilatation | 
| Balloon Valvotomy use Balloon Dilatation | 
| Balloon Valvuloplasty use Balloon Dilatation | 
| Ballota | 
| Balneology | 
| Balneotherapy use Balneology | 
| Balo Concentric Sclerosis use Diffuse Cerebral Sclerosis of Schilder | 
| Balsa use Bombacaceae | 
| Balsam Fir use Abies | 
| 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 Plant use Musa | 
| Banana bunchy top virus use Babuvirus | 
| 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 | 
| 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 | 
| Banna virus use Coltivirus | 
| Bannayan-Riley-Ruvalcaba Syndrome use Hamartoma Syndrome, Multiple | 
| Baobab use Adansonia | 
| Baptisia use Fabaceae | 
| 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 | 
| 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 | 
| Bardet-Biedl Syndrome | 
| Bare Lymphocyte Syndrome use Severe Combined Immunodeficiency | 
| Barefoot Doctors use Community Health Aides | 
| Bariatric Medicine | 
| Bariatric Surgery | 
| Bariatrics | 
| Barium | 
| Barium Compounds | 
| Barium Muriaticum use Baryta Muriatica | 
| Barium Radioisotopes | 
| Barium Sulfate | 
| 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 Spinal Osteophytosis | 
| 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 | 
| Bartholin's Glands | 
| Bartonella | 
| Bartonella Infections | 
| Bartonella bacilliformis | 
| Bartonella henselae | 
| 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 | 
| 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 Region (Chemistry) | 
| Bay, Sweet use Magnolia | 
| 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 | 
| Bdellovibrio | 
| Beach Erosion | 
| Beach Pollution | 
| Beach Sanitation | 
| Beak | 
| Beak and feather disease virus use Circovirus | 
| Beaked Whales use Whales | 
| Bean Plant, Precatory use Abrus | 
| 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 | 
| Bearberry use Arctostaphylos | 
| Bears use Ursidae | 
| Beating Heart Coronary Artery Bypass use Coronary Artery Bypass, Off-Pump | 
| Beaufort Scale | 
| Beauty | 
| 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 | 
| Beauty and Aesthetics Centers | 
| Beauveria | 
| 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 Venoms | 
| Beech use Fagus | 
| Beer | 
| Beer Industry use Brewery | 
| Bees | 
| Beesia use Ranunculaceae | 
| 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 Control | 
| Behavior Modification use Behavior Therapy | 
| Behavior Therapy | 
| Behavior Therapy, Cognitive use Cognitive Therapy | 
| Behavior and Behavior Mechanisms | 
| 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 | 
| Beijerinckia use Beijerinckiaceae | 
| Beijerinckiaceae | 
| Bejel use Treponemal Infections | 
| Belarus use Byelarus | 
| 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 Byelarus | 
| 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 | 
| Benhydramin use Diphenhydramine | 
| Benign Cerebellar Neoplasms use Cerebellar Neoplasms | 
| Benign Childhood Epilepsy With Centro-Temporal 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 Gammopathies, Benign | 
| 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 Nitroanilide | 
| Benzoylarginine beta-Naphthylamide use Benzoylarginine-2-Naphthylamide | 
| 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 | 
| 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 Rays | 
| Beta Rhythm | 
| Beta vulgaris | 
| Beta vulgaris (Homeopathy) | 
| Beta-Aminopropionitrile use Aminopropionitrile | 
| Beta-Globulins | 
| 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 | 
| Bettongia use Potoroidae | 
| Betula | 
| Betulaceae | 
| Betulla alba | 
| Beverage Storage use Food Storage | 
| Beverage Storing use Food Storage | 
| Beverages | 
| Bezafibrate | 
| Bezoars | 
| Bhang use Cannabis | 
| Bhopal Accident | 
| 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 | 
| 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 | 
| Bignonia catalpa use Catalpa bignonoides | 
| Bignoniaceae | 
| Biguanides | 
| Bilateral Agreements | 
| Bilateral Cooperation Programs | 
| Bilateral Pacts use Bilateral Agreements | 
| 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 | 
| 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 | 
| 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 use Bulimia Nervosa | 
| 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 | 
| 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 | 
| Biocenology | 
| Biochemical Drugs use Schussler Salts | 
| Biochemical Latrines use Latrines (Environmental Health) | 
| Biochemical Markers use Biological Markers | 
| Biochemical Oxygen Demand | 
| Biochemical Phenomena | 
| Biochemical Phenomena, Metabolism, and Nutrition | 
| Biochemical Reactions | 
| Biochemistry | 
| 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 | 
| Biodiversity (Disasters) | 
| Bioelectric Energy Sources | 
| Bioelectrical Impedance use Electric Impedance | 
| Bioenergetics use Energy Metabolism | 
| Bioequivalence use Therapeutic Equivalency | 
| Bioequivalent Drugs | 
| Bioethical Issues | 
| Bioethicists use Ethicists | 
| Bioethics | 
| Biofeedback (Psychology) | 
| Biofilms | 
| Biofilters use Biological Filters | 
| Biofilters (Artificial Swamps) use Wetlands | 
| Biofiltration, Acetate-Free use Hemodiafiltration | 
| Bioflavonoids use Flavonoids | 
| 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 | 
| 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 Energy Sources use Bioelectric Energy Sources | 
| Biological Equilibrium | 
| Biological Factors | 
| Biological Filters | 
| Biological Filtration use Biological Filters | 
| Biological Gas use Biogas | 
| Biological Indicators | 
| Biological Markers | 
| Biological Markers, Pharmacological use Biomarkers, Pharmacological | 
| Biological Monitoring use Environmental Monitoring | 
| Biological Oceanography | 
| Biological Oscillators use Biological Clocks | 
| Biological Pest Control use Pest Control, Biological | 
| Biological Phenomena | 
| Biological Phenomena, Cell Phenomena, and Immunity | 
| Biological Pollutants | 
| Biological Process | 
| Biological Products | 
| Biological Psychiatry | 
| Biological Pump use Membrane Transport Proteins | 
| Biological Reactions | 
| Biological Reactors use Bioreactors | 
| Biological Recuperation use Bioremediation (Environmental Health) | 
| Biological Sciences | 
| 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 Engineering | 
| Biomedical Enhancement | 
| Biomedical Research | 
| Biomedical Technology | 
| Biomedical Technology Control use Technology Control, Biomedical | 
| Biomedical and Dental Materials | 
| Biometrics use Biometry | 
| 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 | 
| Biopathographical History | 
| Biopathography use Biopathographical History | 
| Biopathographyc Symptoms use Biopathographical History | 
| Bioperiodicity use Periodicity | 
| Biopharmaceutics | 
| 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 use Biometry | 
| Biostatistics (Public Health) | 
| 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 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 | 
| Birnaviridae | 
| Birnaviridae Infections | 
| 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 | 
| Bisbenzimide | 
| Bisbenzylisoquinolines use Benzylisoquinolines | 
| Biscyclohexanone Oxaldihydrazone use Cuprizone | 
| Bisexuality | 
| Bishydroxycoumarin use Dicumarol | 
| Bismethyl Suberimidate use Dimethyl Suberimidate | 
| Bismuth | 
| Bismuthi oxidum use Bismuthum Oxydatum | 
| Bismuthum Metallicum | 
| Bismuthum Oxydatum | 
| Bismuthum Valerianicum | 
| Bismuthum oxidum use Bismuthum Oxydatum | 
| 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 Lice use Mallophaga | 
| Bitis use Viperidae | 
| Bitter Gourd use Momordica charantia | 
| Bitter Kola use Garcinia kola | 
| Bitter Orange use Citrus aurantium | 
| Bittner Virus use Mammary Tumor Virus, Mouse | 
| Biureas | 
| Biuret | 
| Biuret Reaction | 
| Bivalves use Bivalvia | 
| Bivalvia | 
| Bixa acuminata use Bixa orellana | 
| Bixa orellana | 
| Bixaceae | 
| Blaberidae use Cockroaches | 
| Black Ape use Macaca | 
| Black Bears use Ursidae | 
| Black Bryony use Tamus | 
| Black Cohosh use Cimicifuga | 
| Black Cumin use Nigella sativa | 
| Black Currant use Ribes | 
| Black Elder use Sambucus nigra | 
| Black Fever use Leishmaniasis, Visceral | 
| Black Fever, Amazon use Hepatitis D | 
| Black Flies use Simuliidae | 
| Black Lung Disease use Pneumoconiosis | 
| Black Nightshade use Solanum nigrum | 
| Black Pepper | 
| Black Widow Spider | 
| Black-Legged Tick use Ixodes | 
| Blacks use African Continental Ancestry Group | 
| Blackwater Fever | 
| Bladder use Urinary Bladder | 
| Bladder Cancer use Urinary Bladder Neoplasms | 
| Bladder Diseases use Urinary Bladder Diseases | 
| Bladder Disorder, Neurogenic use Urinary Bladder, Neurogenic | 
| Bladder Drug Administration use Administration, Intravesical | 
| Bladder Exstrophy | 
| Bladder Neck Obstruction use Urinary Bladder Neck Obstruction | 
| Bladder Neoplasms use Urinary Bladder Neoplasms | 
| Blade Implantation | 
| 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 | 
| 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 Infections | 
| Blastocystis hominis | 
| 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 | 
| Bleaches | 
| Bleaching Agents use Bleaches | 
| Blechnum use Ferns | 
| Bleeding use Hemorrhage | 
| Bleeding Time | 
| Bleeding Time, Template use Bleeding Time | 
| Bleeding on Probing, Gingival use Periodontal Index | 
| Blennorrhea, Inclusion use Conjunctivitis, Inclusion | 
| Bleomycin | 
| Blepharitis | 
| Blepharophimosis | 
| Blepharoplasty | 
| Blepharoptosis | 
| Blepharospasm | 
| Blepharospasm-Oromandibular Dystonia use Meige Syndrome | 
| 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 | 
| Blood | 
| Blood Bactericidal Activity | 
| Blood Banks | 
| 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 Phenomena | 
| Blood Physiologic Processes | 
| Blood Physiology | 
| 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 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 | 
| Bloodletting | 
| Bloodroot use Sanguinaria | 
| 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 Cohosh use Caulophyllum | 
| Blue Crab use Brachyura | 
| Blue Cross use Blue Cross Blue Shield Insurance Plans | 
| Blue Cross Blue Shield Insurance Plans | 
| Blue Nevus use Nevus, Blue | 
| Blue Shield use Blue Cross Blue Shield Insurance Plans | 
| Blue Toe Syndrome | 
| Blue Whale use Balaenoptera | 
| Blue-Eared Pig Disease use Porcine Reproductive and Respiratory Syndrome | 
| Blue-Green Algae use Cyanobacteria | 
| Blue-Green Bacteria use Cyanobacteria | 
| Blueberry Plant | 
| Bluecomb Virus use Coronavirus, Turkey | 
| Bluecomb of Turkeys use Enteritis, Transmissible, of Turkeys | 
| Bluegill use Perciformes | 
| Bluegrass use Poa | 
| Bluetongue | 
| Bluetongue virus | 
| Blunt Injuries use Wounds, Nonpenetrating | 
| Blushing | 
| Boa use Boidae | 
| Board use Pulp and Paper Industry | 
| Board, Governing use Governing Board | 
| Boats use Ships | 
| Bobcats use Lynx | 
| Bobwhite use Colinus | 
| Bocavirus | 
| Bodily Secretions | 
| Body Buffer Zone use Personal Space | 
| Body Build use Somatotypes | 
| Body Burden | 
| Body Composition | 
| Body Constitution | 
| 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 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 of Water use Water Resources | 
| 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 | 
| 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 Plant | 
| Bonamia ostreae use Haplosporida | 
| 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 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 Fibrosis use Myelofibrosis | 
| 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 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 and Bones | 
| 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 | 
| 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 | 
| Borage use Borago | 
| Boraginaceae | 
| Borago | 
| Boranes | 
| Borates | 
| Borax use Borax Veneta | 
| Borax Veneta | 
| Border Areas | 
| Border Disease | 
| Border Health | 
| Border disease virus | 
| Borderline Personality Disorder | 
| Bordetella | 
| Bordetella Infections | 
| Bordetella Virulence Factors use Virulence Factors, Bordetella | 
| Bordetella avium | 
| Bordetella bronchiseptica | 
| Bordetella parapertussis | 
| Bordetella pertussis | 
| 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 Infections | 
| 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 | 
| 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 | 
| Botrytis | 
| Botswana | 
| Bottle Feeding | 
| Bottle-Nosed Dolphin | 
| Bottled Water | 
| Botulin use Botulinum Toxins | 
| Botulinum | 
| Botulinum Antitoxin | 
| Botulinum Toxin Type A | 
| Botulinum Toxins | 
| Botulism | 
| Botulism, Infantile use Botulism | 
| Bougainvillea use Nyctaginaceae | 
| Boulengerina use Cobra | 
| Bounafa use Ferula glauca | 
| Bourneville Disease use Tuberous Sclerosis | 
| Boutonneuse Fever | 
| Bouvardia use Rubiaceae | 
| Bovicola use Mallophaga | 
| Bovine Hemorrhagic Syndrome use Hemorrhagic Syndrome, Bovine | 
| Bovine Herpes Mammillitis Virus use Herpesvirus 2, 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 Polyomavirus use Polyomavirus | 
| Bovine Respiratory Disease Complex | 
| Bovine Spongiform Encephalopathy use Encephalopathy, Bovine Spongiform | 
| Bovine Syncytial Virus use Spumavirus | 
| Bovine Ulcerative Mammillitis Virus use Herpesvirus 2, Bovine | 
| Bovine Viral Diarrhea Viruses use Diarrhea Viruses, Bovine Viral | 
| Bovine Virus Diarrhea-Mucosal Disease | 
| Bovine adenovirus D use Atadenovirus | 
| Bovine coronavirus use Coronavirus, Bovine | 
| 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 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 papillomavirus 1 | 
| Bovine papillomavirus 4 | 
| Bovine parainfluenza virus 3 use Parainfluenza Virus 3, Bovine | 
| Bovine respiratory syncytial virus use Respiratory Syncytial Virus, Bovine | 
| Bovine torovirus use Torovirus | 
| Bovine viral diarrhea virus 1 use Diarrhea Virus 1, Bovine Viral | 
| Bovine viral diarrhea virus 2 use Diarrhea Virus 2, Bovine Viral | 
| 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 | 
| Box Jellyfish use Cubozoa | 
| Boxes use Chambers | 
| Boxfishes use Tetraodontiformes | 
| Boxing | 
| Boxwood use Buxus | 
| Boyd Groups | 
| 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 | 
| Brachyspira | 
| Brachyspira hyodysenteriae | 
| Brachyspira innocens use Brachyspira | 
| Brachytherapy | 
| Brachyura | 
| Brackenfern use Pteridium | 
| Braconid Viruses use Polydnaviridae | 
| Bracyteles use Atelinae | 
| 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 | 
| 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-Blood Barrier use Blood-Brain Barrier | 
| Brain-Derived Neurotrophic Factor | 
| Brain-Derived Neurotrophic Factor Receptor use Receptor, trkB | 
| Brainwashing use Persuasive Communication | 
| 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 juncea use Mustard Plant | 
| Brassica napus | 
| Brassica rapa | 
| Brassicaceae | 
| Brayera anthelmintica use Kousso | 
| Brazil | 
| Brazil Nut Tree use Bertholletia | 
| Brazil Nuts use Bertholletia | 
| Brazilian Arrowroot use Manihot | 
| Brazilian Box Tree use Aspidosperma | 
| 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 | 
| Brazilwood use Caesalpinia | 
| 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 | 
| Bretylium Compounds | 
| Bretylium Tosylate | 
| Brevibacterium | 
| Brevibacterium flavum | 
| 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 | 
| 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 Ligament | 
| Broad Thumb-Hallux Syndrome use Rubinstein-Taybi Syndrome | 
| Broad beta Disease use Hyperlipoproteinemia Type III | 
| Broadsides | 
| Broadsides as Topic | 
| Broca Aphasia use Aphasia, Broca | 
| Broca Area use Frontal Lobe | 
| Broccoli use Brassica | 
| Brochures use Pamphlets | 
| Brock's Syndrome use Middle Lobe Syndrome | 
| Brocresine | 
| 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 use Bronchi | 
| Bronchiolitis | 
| Bronchiolitis Obliterans | 
| Bronchiolitis Obliterans 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 | 
| Bronchopneumonia | 
| Bronchopulmonary Aspergillosis use Aspergillosis, Allergic Bronchopulmonary | 
| Bronchopulmonary Dysplasia | 
| Bronchopulmonary Sequestration | 
| Bronchoscopes | 
| Bronchoscopic Surgical Procedures use Bronchoscopy | 
| Bronchoscopy | 
| Bronchospasm use Bronchial Spasm | 
| Bronchospasm, Exercise-Induced use Asthma, Exercise-Induced | 
| Bronchospirometry | 
| 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 Vaccine | 
| Brucella abortus | 
| Brucella canis | 
| Brucella melitensis | 
| Brucella ovis | 
| Brucella suis | 
| Brucellaceae | 
| Brucellosis | 
| Brucellosis, Bovine | 
| Bruch Membrane | 
| Brucia use Brucinum | 
| Brucinum | 
| Brucite use Magnesium Hydroxide | 
| Brueghel Syndrome use Meige Syndrome | 
| Brugada Syndrome | 
| Brugia | 
| Brugia malayi | 
| Brugia pahangi | 
| Brugmansia use Solanaceae | 
| Brugmansia candida use Datura arborea | 
| Bruguiera use Rhizophoraceae | 
| Bruise use Contusions | 
| Brunei | 
| Brunei Darussalam use Brunei | 
| Bruneomycin use Streptonigrin | 
| Brunfelsia hopeana 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, Black use Tamus | 
| Bryophyta | 
| Bryopsida | 
| Bryostatins | 
| Bryozoa | 
| Bubalus use Buffaloes | 
| Bubonic Plague use Plague | 
| Bucca use Cheek | 
| Buccal Drug Administration use Administration, Buccal | 
| Buccal Mucosa use Mouth Mucosa | 
| 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 | 
| Buerger Disease use Thromboangiitis Obliterans | 
| Bufanolides | 
| Bufexamac | 
| 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 | 
| 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 | 
| Bulbospinal Neuronopathy use Muscular Atrophy, Spinal | 
| Bulbourethral Glands | 
| Bulgaria | 
| Bulimia | 
| Bulimia Nervosa | 
| Bulinus | 
| Bulking Agent use Bulking Agents | 
| Bulking Agents | 
| Bulla use Blister | 
| Bullfrog use Rana catesbeiana | 
| Bullous Skin Diseases use Skin Diseases, Vesiculobullous | 
| Bumetanide | 
| Bunaftine | 
| Bunaphtide use Bunaftine | 
| Bund use Dykes | 
| Bundle of His | 
| Bundle of Kent use Heart Conduction System | 
| Bundle-Branch Block | 
| Bungarotoxins | 
| Bungarus | 
| Bungurus 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 Infections | 
| Burkholderia cepacia | 
| Burkholderia cepacia complex | 
| Burkholderia cocovenenans use Burkholderia gladioli | 
| Burkholderia gladioli | 
| 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 Mouth Syndrome | 
| Burningbush (Bassia) use Bassia scoparia | 
| Burningbush (Euonymus) use Euonymus | 
| Burnout, Professional | 
| Burns | 
| Burns, Chemical | 
| Burns, Electric | 
| Burns, Inhalation | 
| Burnt Lime use Calcium oxide | 
| 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 Progenitor 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 | 
| Butterflies | 
| Butterfly Valves | 
| Buttermilk use Cultured Milk Products | 
| Buttocks | 
| 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 | 
| Buxus | 
| Buxus angustifolia use Buxus sempervirens | 
| Buxus sempervirens | 
| Byelarus | 
| Byelorussian S.S.R. use Byelarus | 
| 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 | 
| Bystander Effect | 
| Byzantine Empire use Byzantium | 
| Byzantium | 
| bZIP G-Box Binding Factors use Basic-Leucine Zipper Transcription Factors | 
| 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 | 
| bcr Proto-Oncogene Proteins use Proto-Oncogene Proteins c-bcr | 
| bcr-abl Fusion Proteins use Fusion Proteins, bcr-abl | 
| 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 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 use Beta Rays | 
| beta Proteobacteria use Betaproteobacteria | 
| 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-Amylase | 
| beta-Amyloid Protein use Amyloid beta-Protein | 
| 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 Globins | 
| 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-MSH | 
| beta-Mannosidase | 
| beta-Mannosidosis | 
| beta-Mercaptopropionate use 3-Mercaptopropionic Acid | 
| beta-Methyldigoxin use Medigoxin | 
| 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 |