DeCS 
    2008 - March 17, 2008 version
    
       
        |  Alphabetic 
          Index of Descriptors   
           
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        |  | 
 | H(+) Pump use Proton Pumps | 
| H(+)-K(+)-Exchanging ATPase | 
| H(+)-K(+)-Transporting ATPase use H(+)-K(+)-Exchanging ATPase | 
| H(+)-Transporting ATP Synthase use Proton-Translocating ATPases | 
| H(+)-Transporting ATPase use Proton-Translocating ATPases | 
| H(+)ATPase Complex use Proton-Translocating ATPases | 
| H-1 parvovirus | 
| H-2 Antigens | 
| H-7 use 1-(5-Isoquinolinesulfonyl)-2-Methylpiperazine | 
| H-D Antibodies use Antibodies, Heterophile | 
| H-D Antigens use Antigens, Heterophile | 
| H-GRF55 Protein use ras-GRF1 | 
| H-Protein, Glycine Cleavage System use Glycine Decarboxylase Complex H-Protein | 
| H-Reflex | 
| H-Y Antigen | 
| H1N1 Virus use Influenza A Virus, H1N1 Subtype | 
| H2N2 Virus use Influenza A Virus, H2N2 Subtype | 
| H3N2 Virus use Influenza A Virus, H3N2 Subtype | 
| H3N8 Virus use Influenza A Virus, H3N8 Subtype | 
| H5N1 Virus use Influenza A Virus, H5N1 Subtype | 
| H5N2 Virus use Influenza A Virus, H5N2 Subtype | 
| H7N7 Virus use Influenza A Virus, H7N7 Subtype | 
| H9N2 Virus use Influenza A Virus, H9N2 Subtype | 
| HAART use Antiretroviral Therapy, Highly Active | 
| HACCP use Hazard Analysis and Critical Control Point | 
| HBAg use Hepatitis B Antigens | 
| HBGF-1 use Fibroblast Growth Factor 1 | 
| HBGF-2 use Fibroblast Growth Factor 2 | 
| HBLV use Herpesvirus 6, Human | 
| HBV use Hepatitis B virus | 
| HBcAg use Hepatitis B Core Antigens | 
| HBeAg use Hepatitis B e Antigens | 
| HBsAg use Hepatitis B Surface Antigens | 
| HCB use Hexachlorobenzene | 
| HCG (Human Chorionic Gonadotropin) use Chorionic Gonadotropin | 
| HCG, alpha Subunit use Glycoprotein Hormones, alpha Subunit | 
| HCG-beta use Chorionic Gonadotropin, beta Subunit, Human | 
| HCPCS use Healthcare Common Procedure Coding System | 
| HCT116 Cells | 
| HCV use Hepacivirus | 
| HCV Antibodies use Hepatitis C Antibodies | 
| HDPE use Polyethylene | 
| HDPE Pipes use Polyethylene Pipes | 
| HELLP Syndrome | 
| HEMPAS use Anemia, Dyserythropoietic, Congenital | 
| HEPES | 
| HER-2 Proto-Oncogene Protein use Receptor, erbB-2 | 
| HER-3 Proto-Oncogene Protein use Receptor, erbB-3 | 
| HERVs use Endogenous Retroviruses | 
| HESW use High-Energy Shock Waves | 
| HETE use Hydroxyeicosatetraenoic Acids | 
| HFRS use Hemorrhagic Fever with Renal Syndrome | 
| HFRS Virus use Hantaan virus | 
| HGE Agent use Anaplasma phagocytophilum | 
| HGF Receptor use Proto-Oncogene Proteins c-met | 
| HIPAA use Health Insurance Portability and Accountability Act | 
| HIV | 
| HIV Antibodies | 
| HIV Antibody Positivity use HIV Seropositivity | 
| HIV Antigens | 
| HIV Core Protein p24 | 
| HIV Dementia use AIDS Dementia Complex | 
| HIV Encephalopathy use AIDS Dementia Complex | 
| HIV Enhancer | 
| HIV Enteropathy | 
| HIV Entry Inhibitors use HIV Fusion Inhibitors | 
| HIV Envelope Protein gp120 | 
| HIV Envelope Protein gp160 | 
| HIV Envelope Protein gp41 | 
| HIV Fusion Inhibitors | 
| HIV Infections | 
| HIV Integrase | 
| HIV Integrase Inhibitors | 
| HIV Long Terminal Repeat | 
| HIV Long-Term Survivors | 
| HIV Major Core Protein p24 use HIV Core Protein p24 | 
| HIV NF-kappa B-Binding Site use HIV Enhancer | 
| HIV Negative Regulatory Element use HIV Long Terminal Repeat | 
| HIV Non-Progressors use HIV Long-Term Survivors | 
| HIV Peptide T use Peptide T | 
| HIV Protease | 
| HIV Protease Inhibitors | 
| HIV Proteinase use HIV Protease | 
| HIV Proteins use Human Immunodeficiency Virus Proteins | 
| HIV Receptors use Receptors, HIV | 
| HIV Reverse Transcriptase | 
| HIV SP1-Binding Site use HIV Long Terminal Repeat | 
| HIV Seroconversion use HIV Seropositivity | 
| HIV Serodiagnosis use AIDS Serodiagnosis | 
| HIV Seronegativity | 
| HIV Seropositivity | 
| HIV Seroprevalence | 
| HIV Transacting Transcription Protein use tat Gene Products, Human Immunodeficiency Virus | 
| HIV Transmembrane Protein gp41 use HIV Envelope Protein gp41 | 
| HIV Vaccines use AIDS Vaccines | 
| HIV Wasting Disease use HIV Wasting Syndrome | 
| HIV Wasting Syndrome | 
| HIV gag Gene Product p24 use HIV Core Protein p24 | 
| HIV p24 Antigen use HIV Core Protein p24 | 
| HIV rev Gene Product use rev Gene Products, Human Immunodeficiency Virus | 
| HIV rev-Responsive Element use Genes, env | 
| HIV tat Protein use tat Gene Products, Human Immunodeficiency Virus | 
| HIV trans-Acting Responsive Region use HIV Long Terminal Repeat | 
| HIV vif Gene Product use vif Gene Products, Human Immunodeficiency Virus | 
| HIV vpr Gene Product use vpr Gene Products, Human Immunodeficiency Virus | 
| HIV-1 | 
| HIV-1-Associated Cognitive Motor Complex use AIDS Dementia Complex | 
| HIV-2 | 
| HIV-3'-orf Genes use Genes, nef | 
| HIV-Associated Antibodies use HIV Antibodies | 
| HIV-Associated Antigens use HIV Antigens | 
| HIV-Associated Cognitive Motor Complex use AIDS Dementia Complex | 
| HIV-Associated Enteropathy use HIV Enteropathy | 
| HIV-Associated Lipodystrophy Syndrome | 
| HIV-Associated Nephropathy use AIDS-Associated Nephropathy | 
| HIV-Associated Vasculitis of the Central Nervous System use AIDS Arteritis, Central Nervous System | 
| HIV-Related Lymphoma use Lymphoma, AIDS-Related | 
| HIV-Related Opportunistic Infections use AIDS-Related Opportunistic Infections | 
| HL-60 Cells | 
| HLA Antigens | 
| HLA DNA Probes use DNA Probes, HLA | 
| HLA Typing use Histocompatibility Testing | 
| HLA-A Antigens | 
| HLA-A1 Antigen | 
| HLA-A2 Antigen | 
| HLA-A3 Antigen | 
| HLA-B Antigens | 
| HLA-B27 Antigen | 
| HLA-B35 Antigen | 
| HLA-B7 Antigen | 
| HLA-B8 Antigen | 
| HLA-BR Antigens use HLA-DR Antigens | 
| HLA-Bw35 use HLA-B35 Antigen | 
| HLA-C Antigens | 
| HLA-D Antigens | 
| HLA-D-Related Antigens use HLA-DR Antigens | 
| HLA-DC Antigens use HLA-DQ Antigens | 
| HLA-DP Antigens | 
| HLA-DQ Antigens | 
| HLA-DR Antigens | 
| HLA-DR1 Antigen | 
| HLA-DR2 Antigen | 
| HLA-DR3 Antigen | 
| HLA-DR4 Antigen | 
| HLA-DR5 Antigen | 
| HLA-DR6 Antigen | 
| HLA-DR7 Antigen | 
| HLA-DRw6 use HLA-DR6 Antigen | 
| HLA-Dw Antigens use HLA-D Antigens | 
| HLA-MB Antigens use HLA-DQ Antigens | 
| HLA-MT Antigens use HLA-DR Antigens | 
| HLA-PL Antigens use HLA-DP Antigens | 
| HLA-SB Antigens use HLA-DP Antigens | 
| HLH Motifs use Helix-Loop-Helix Motifs | 
| HMG 14 Protein use HMGN1 Protein | 
| HMG 17 Protein use HMGN2 Protein | 
| HMG CoA Reductases use Hydroxymethylglutaryl CoA Reductases | 
| HMG CoA Reductases, NAD-Dependent use Hydroxymethylglutaryl-CoA Reductases, NAD-Dependent | 
| HMG I-C Protein use HMGA2 Protein | 
| HMG I-Type Protein use HMGA1a Protein | 
| HMG Proteins use High Mobility Group Proteins | 
| HMG-AT-Hook Proteins use HMGA Proteins | 
| HMG-Box Domains | 
| HMG-Box Proteins use HMGB Proteins | 
| HMG-CoA Reductase Inhibitors use Hydroxymethylglutaryl-CoA Reductase Inhibitors | 
| HMG1 use HMGB1 Protein | 
| HMG2 use HMGB2 Protein | 
| HMG2a use HMGB3 Protein | 
| HMGA Proteins | 
| HMGA1a Protein | 
| HMGA1b Protein | 
| HMGA1c Protein | 
| HMGA2 Protein | 
| HMGB Proteins | 
| HMGB1 Protein | 
| HMGB2 Protein | 
| HMGB3 Protein | 
| HMGN Proteins | 
| HMGN1 Protein | 
| HMGN2 Protein | 
| HMN Proximal Type I use Spinal Muscular Atrophies of Childhood | 
| HMO use Health Maintenance Organizations | 
| HMSN use Hereditary Motor and Sensory Neuropathies | 
| HMSN Type I use Charcot-Marie-Tooth Disease | 
| HMSN Type II use Charcot-Marie-Tooth Disease | 
| HMSN Type III use Hereditary Motor and Sensory Neuropathies | 
| HMSN Type IV use Refsum Disease | 
| HMSN Type VII use Hereditary Motor and Sensory Neuropathies | 
| HN Protein | 
| HNRNP D use Heterogeneous-Nuclear Ribonucleoprotein D | 
| HPLC use Chromatography, High Pressure Liquid | 
| HPNS use High Pressure Neurological Syndrome | 
| HPRT use Hypoxanthine Phosphoribosyltransferase | 
| HPV DNA Probes use DNA Probes, HPV | 
| HRF20 use Antigens, CD59 | 
| HSAN use Hereditary Sensory and Autonomic Neuropathies | 
| HSAN Type I use Hereditary Sensory and Autonomic Neuropathies | 
| HSAN Type II use Hereditary Sensory and Autonomic Neuropathies | 
| HSAN Type III use Dysautonomia, Familial | 
| HSAN Type IV use Hereditary Sensory and Autonomic Neuropathies | 
| HSAN Type V use Hereditary Sensory and Autonomic Neuropathies | 
| HSC70 Heat-Shock Proteins | 
| HSN Type I use Hereditary Sensory and Autonomic Neuropathies | 
| HSN Type II use Hereditary Sensory and Autonomic Neuropathies | 
| HSP110 Heat-Shock Proteins | 
| HSP20 Heat-Shock Proteins | 
| HSP30 Heat-Shock Proteins | 
| HSP40 Heat-Shock Proteins | 
| HSP47 Heat-Shock Proteins | 
| HSP70 Heat-Shock Proteins | 
| HSP72 Heat-Shock Proteins | 
| HSP90 Heat-Shock Proteins | 
| HSPG use Heparan Sulfate Proteoglycans | 
| HSV Vaccines use Herpes Simplex Virus Vaccines | 
| HSV-1 use Herpesvirus 1, Human | 
| HSV-1 Protein VP16 use Herpes Simplex Virus Protein Vmw65 | 
| HSV-2 use Herpesvirus 2, Human | 
| HT29 Cells | 
| HTH Motifs use Helix-Turn-Helix Motifs | 
| HTLV Antibodies use Deltaretrovirus Antibodies | 
| HTLV Antigens use Deltaretrovirus Antigens | 
| HTLV Infections use Deltaretrovirus Infections | 
| HTLV Viruses use Deltaretrovirus | 
| HTLV-1 use Human T-lymphotropic virus 1 | 
| HTLV-2 use Human T-lymphotropic virus 2 | 
| HTLV-BLV Antibodies use Deltaretrovirus Antibodies | 
| HTLV-BLV Antigens use Deltaretrovirus Antigens | 
| HTLV-BLV Infections use Deltaretrovirus Infections | 
| HTLV-BLV Viruses use Deltaretrovirus | 
| HTLV-I use Human T-lymphotropic virus 1 | 
| HTLV-I Antibodies | 
| HTLV-I Antigens | 
| HTLV-I Infections | 
| HTLV-I rex Genes use Genes, pX | 
| HTLV-I tax Genes use Genes, pX | 
| HTLV-I-Associated Myelopathy use Paraparesis, Tropical Spastic | 
| HTLV-II use Human T-lymphotropic virus 2 | 
| HTLV-II Antibodies | 
| HTLV-II Antigens | 
| HTLV-II Infections | 
| HTLV-II rex Genes use Genes, pX | 
| HTLV-II tax Genes use Genes, pX | 
| HTLV-III use HIV | 
| HTLV-III Antibodies use HIV Antibodies | 
| HTLV-III Antigens use HIV Antigens | 
| HTLV-III Infections use HIV Infections | 
| HTLV-III Protease use HIV Protease | 
| HTLV-III Receptors use Receptors, HIV | 
| HTLV-III Seroconversion use HIV Seropositivity | 
| HTLV-III Serodiagnosis use AIDS Serodiagnosis | 
| HTLV-III Serology use AIDS Serodiagnosis | 
| HTLV-III Seronegativity use HIV Seronegativity | 
| HTLV-III Seropositivity use HIV Seropositivity | 
| HTLV-III gp120 use HIV Envelope Protein gp120 | 
| HTLV-III gp160 use HIV Envelope Protein gp160 | 
| HTLV-III gp41 use HIV Envelope Protein gp41 | 
| HTLV-III-LAV Antibodies use HIV Antibodies | 
| HTLV-III-LAV Antigens use HIV Antigens | 
| HTLV-III-LAV Infections use HIV Infections | 
| HTLV-IV use HIV-2 | 
| HY Antigen use H-Y Antigen | 
| HZE Particles use Cosmic Radiation | 
| Ha-ras Genes use Genes, ras | 
| Habenula | 
| Habilitation use Rehabilitation | 
| Habit Disturbances use Habits | 
| Habit Spasm use Tics | 
| Habitat | 
| Habits | 
| Habituation, Psychophysiologic | 
| Habronema use Spiruroidea | 
| Habronemiasis use Spirurida Infections | 
| Habu use Trimeresurus | 
| Hackberry use Ulmaceae | 
| Haem Oxygenase use Heme Oxygenase (Decyclizing) | 
| Haematopinus use Anoplura | 
| Haematoxylum campechianum | 
| Haemobartonella use Mycoplasma | 
| Haemobartonellosis use Anaplasmataceae Infections | 
| Haemonchiasis | 
| Haemonchus | 
| Haemophilus | 
| Haemophilus Infections | 
| Haemophilus Vaccines | 
| Haemophilus ducreyi | 
| Haemophilus influenzae | 
| Haemophilus influenzae Vaccines use Haemophilus Vaccines | 
| Haemophilus influenzae type b | 
| Haemophilus paragallinarum | 
| Haemophilus parainfluenzae | 
| Haemophilus paraphrophilus | 
| Haemophilus parasuis | 
| Haemophilus pertussis use Bordetella pertussis | 
| Haemophilus pleuropneumoniae use Actinobacillus pleuropneumoniae | 
| Haemophilus somnus | 
| Haemophilus vaginalis use Gardnerella vaginalis | 
| Haemosporida | 
| Hafnia | 
| Hafnia alvei | 
| Hafnium | 
| Hageman Factor use Factor XII | 
| Hageman Trait use Factor XII Deficiency | 
| Hagfishes | 
| Hahnemannian Method | 
| Hail | 
| Hail Storm | 
| Hailey-Hailey Disease use Pemphigus, Benign Familial | 
| Hailstone use Hail | 
| Hailstorm use Hail Storm | 
| Hair | 
| Hair Balls use Bezoars | 
| Hair Cells, Ampulla | 
| Hair Cells, Auditory | 
| Hair Cells, Auditory, Inner | 
| Hair Cells, Auditory, Outer | 
| Hair Cells, Vestibular | 
| Hair Color | 
| Hair Colorants use Hair Dyes | 
| Hair Diseases | 
| Hair Dresser use Barbering | 
| Hair Dressing Salon use Beauty and Aesthetics Centers | 
| Hair Dyes | 
| Hair Follicle | 
| Hair Preparations | 
| Hair Removal | 
| Hair, Fetal use Hair | 
| Hair-Specific Cytokeratins use Keratins, Hair-Specific | 
| Hairdresser use Barbering | 
| Hairdressing Salon use Beauty and Aesthetics Centers | 
| Hairdressing Salons use Beauty and Aesthetics Centers | 
| Hairless Mice use Mice, Inbred HRS | 
| Hairy Cell Leukemia use Leukemia, Hairy Cell | 
| Haiti | 
| Hajdu-Cheney Syndrome | 
| Hakes use Gadiformes | 
| Hakim Syndrome use Hydrocephalus, Normal Pressure | 
| Halcinonide | 
| Half-Body Irradiation use Hemibody Irradiation | 
| Half-Life | 
| Half-Sib Mating use Inbreeding | 
| Halfway Houses | 
| Haliaeetus use Eagles | 
| Halichoerus grypus use Seals, Earless | 
| Haliclona | 
| Halide | 
| Halitosis | 
| Hall Aqua | 
| Hallermann's Syndrome | 
| Hallermann-Streiff Syndrome use Hallermann's Syndrome | 
| Hallopeau-Siemens Disease use Epidermolysis Bullosa Dystrophica | 
| Hallucinations | 
| Hallucinogens | 
| Hallux | 
| Hallux Abductovalgus use Hallux Valgus | 
| Hallux Limitus | 
| Hallux Rigidus | 
| Hallux Valgus | 
| Hallux Varus | 
| Halo Effect use Effect Modifiers (Epidemiology) | 
| Haloarcula | 
| Haloarcula marismortui | 
| Halobacteria use Euryarchaeota | 
| Halobacteriaceae | 
| Halobacteriales | 
| Halobacterium | 
| Halobacterium halobium use Halobacterium salinarum | 
| Halobacterium marismortui use Haloarcula marismortui | 
| Halobacterium salinarum | 
| Halococcus | 
| Halofenate | 
| Haloferax | 
| Haloferax mediterranei | 
| Haloferax volcanii | 
| Halogenated Hydrocarbons use Hydrocarbons, Halogenated | 
| Halogenated Pollutants | 
| Halogenation | 
| Halogens | 
| Halogeton use Chenopodiaceae | 
| Halomonadaceae | 
| Halomonas | 
| Halomonas elongata use Halomonas | 
| Haloperidol | 
| Halophiles, Extreme use Halobacteriales | 
| Halorhodopsin use Halorhodopsins | 
| Halorhodopsins | 
| Halorhodospira halophila | 
| Halothane | 
| Halothiobacillus | 
| Halothiobacillus neapolitanus use Halothiobacillus | 
| Halsted Mastectomy use Mastectomy, Radical | 
| Hamadryas Baboon use Papio hamadryas | 
| Hamamelidaceae | 
| Hamamelis | 
| Hamamelis virginiana | 
| Hamartoma | 
| Hamartoma Syndrome, Multiple | 
| Hamate Bone | 
| Hamelia | 
| Hamman-Rich Syndrome use Pulmonary Fibrosis | 
| Hammer Toe use Hammer Toe Syndrome | 
| Hammer Toe Syndrome | 
| Hamsters use Cricetinae | 
| Hamsters, Armenian use Cricetulus | 
| Hamsters, Chinese use Cricetulus | 
| Hamsters, Djungarian use Phodopus | 
| Hamsters, Golden use Mesocricetus | 
| Hamsters, Golden Syrian use Mesocricetus | 
| Hamsters, Grey use Cricetulus | 
| Hamsters, Siberian use Phodopus | 
| Hamsters, Syrian use Mesocricetus | 
| Hand | 
| Hand Bones | 
| Hand Deformities | 
| Hand Deformities, Acquired | 
| Hand Deformities, Congenital | 
| Hand Dermatoses | 
| Hand Injuries | 
| Hand Joints | 
| Hand Lotions use Beauty Lotions | 
| Hand Strength | 
| Hand, Foot and Mouth Disease | 
| Hand-Arm Vibration Syndrome | 
| Handbooks | 
| Handedness use Functional Laterality | 
| Handicapped use Disabled Persons | 
| Handicapped Advocacy | 
| Handicapped Children use Disabled Children | 
| Handicapped Rights use Handicapped Advocacy | 
| Handling (Psychology) | 
| Handpumps | 
| Handwashing | 
| Handwriting | 
| Hanganutziu-Deicher Antibodies use Antibodies, Heterophile | 
| Hanganutziu-Deicher Antigens use Antigens, Heterophile | 
| Hansen's Disease use Leprosy | 
| Hansenula use Pichia | 
| Hantaan virus | 
| Hantavirus | 
| Hantavirus Infections | 
| Hantavirus Pulmonary Syndrome | 
| Hapale use Callithrix | 
| Hapalemur use Lemuridae | 
| Haploidy | 
| Haplopappus | 
| Haplophyllum use Rutaceae | 
| Haplorhini | 
| Haplosporida | 
| Haplosporidia use Haplosporida | 
| Haplotypes | 
| Happiness | 
| Happy Puppet Syndrome use Angelman Syndrome | 
| Haptens | 
| Haptoglobins | 
| Harassment, Nonsexual use Social Behavior | 
| Harassment, Sexual use Sexual Harassment | 
| Harbor Porpoise use Phocoena | 
| Harbor Sanitation | 
| Harbors use Harbor Sanitation | 
| Hard Palate use Palate, Hard | 
| Hard of Hearing Persons use Hearing Impaired Persons | 
| Harderian Gland | 
| Hardness | 
| Hardness Tests | 
| Hardware, Computer use Computers | 
| Hardwater use Water Hardness | 
| Hardy-Zuckerman feline sarcoma virus use Sarcoma Viruses, Feline | 
| Hare's Ear use Bupleurum | 
| Harelip use Cleft Lip | 
| Hares | 
| Harlequin Fetus use Ichthyosis, Lamellar | 
| Harm Minimization use Harm Reduction | 
| Harm Reduction | 
| Harmaline | 
| Harmidine use Harmaline | 
| Harmine | 
| Harpacticoida use Copepoda | 
| Harpagophytum | 
| Harpagophytum procumbens | 
| Harpullia use Sapindaceae | 
| Harringtonines | 
| Harrisonia use Simaroubaceae | 
| Hartmannella | 
| Hartnup Disease | 
| Harvest Mites use Trombiculidae | 
| Harvey Sarcoma Virus use Harvey murine sarcoma virus | 
| Harvey murine sarcoma virus | 
| Hashimoto Disease | 
| Hashimoto's Disease use Hashimoto Disease | 
| Hashish use Cannabis | 
| Hashish Abuse use Marijuana Abuse | 
| Hashish Smoking use Marijuana Smoking | 
| Hate | 
| Haversian System | 
| Hawaii | 
| Hawk's Beard use Crepis | 
| Hawks | 
| Hawthorn use Crataegus | 
| Hawthorne Effect use Effect Modifiers (Epidemiology) | 
| Hay Fever use Rhinitis, Allergic, Seasonal | 
| Hazard Analysis and Critical Control Point | 
| Hazard Management use Safety Management | 
| Hazard, Internal use Internal Hazard | 
| Hazard, Total use Total Hazard | 
| Hazardous Chemicals use Hazardous Substances | 
| Hazardous Materials use Hazardous Substances | 
| Hazardous Materials Escape | 
| Hazardous Materials Spill | 
| Hazardous Materials Spill in Soil | 
| Hazardous Materials Spill in the Ocean | 
| Hazardous Substances | 
| Hazardous Substances and Wastes Stockpiling | 
| Hazardous Substances, Products and Materials | 
| Hazardous Waste | 
| Hazardous Waste Characteristics | 
| Hazardous Waste Containers | 
| Hazardous Waste Deep-Well Injection | 
| Hazardous Waste Disposal | 
| Hazardous Waste Minimization | 
| Hazardous Waste Sites use Hazardous Waste | 
| Hazardous Waste Storage | 
| Hazardous Waste Treatment Plants | 
| Hazardous Waste Use | 
| Hazardous Waste, Radioactive use Radioactive Waste | 
| Hazards | 
| Hazards Models use Proportional Hazards Models | 
| Hazards, Equipment use Equipment Safety | 
| Hazelnut use Corylus | 
| Hb A1c use Hemoglobin A, Glycosylated | 
| HbA1 use Hemoglobin A, Glycosylated | 
| Head | 
| Head Banging use Stereotypic Movement Disorder | 
| Head Cancer use Head and Neck Neoplasms | 
| Head Injuries use Craniocerebral Trauma | 
| Head Injuries, Closed | 
| Head Injuries, Nonpenetrating use Head Injuries, Closed | 
| Head Injuries, Penetrating | 
| Head Lice use Pediculus | 
| Head Loss | 
| Head Movements | 
| Head Nurses use Nursing, Supervisory | 
| Head Protective Devices | 
| Head Start Program use Early Intervention (Education) | 
| Head Trauma use Craniocerebral Trauma | 
| Head Trauma, Closed use Head Injuries, Closed | 
| Head and Neck Cancer use Head and Neck Neoplasms | 
| Head and Neck Neoplasms | 
| Head-Down Tilt | 
| Headache | 
| Headache Disorders | 
| Headache Disorders, Primary | 
| Headache Disorders, Secondary | 
| Headache, Cluster use Cluster Headache | 
| Headache, Migraine use Migraine Disorders | 
| Headache, Tension use Tension-Type Headache | 
| Headache, Vascular use Vascular Headaches | 
| Headgear, Orthodontic use Extraoral Traction Appliances | 
| Health | 
| Health Administration | 
| Health Administration and Planning use Health Policy, Planning and Management | 
| Health Advocacy | 
| Health Alliances use Insurance Pools | 
| Health Behavior | 
| Health Benefit Plans, Employee | 
| Health Benefits use Insurance Benefits | 
| Health Campaigns use Health Promotion | 
| Health Care use Delivery of Health Care | 
| Health Care (Public Health) | 
| Health Care Coalitions | 
| Health Care Costs | 
| Health Care Delivery use Delivery of Health Care | 
| Health Care Economics and Organizations | 
| Health Care Evaluation Mechanisms | 
| Health Care Facilities, Manpower, and Services | 
| Health Care Financing Administration (U.S.) use Centers for Medicare and Medicaid Services (U.S.) | 
| Health Care Fraud use Fraud | 
| Health Care Levels | 
| Health Care Market use Health Care Sector | 
| Health Care Power of Attorney use Advance Directives | 
| Health Care Providers use Health Personnel | 
| Health Care Quality, Access, and Evaluation | 
| Health Care Rationing | 
| Health Care Reform | 
| Health Care Research use Health Services Research | 
| Health Care Sector | 
| Health Care Seeking Behavior use Patient Acceptance of Health Care | 
| Health Care Surveys | 
| Health Care Systems use Delivery of Health Care | 
| Health Care Team use Patient Care Team | 
| Health Care Technology use Biomedical Technology | 
| Health Centers | 
| Health Centers, Ambulatory use Ambulatory Care Facilities | 
| Health Certificate | 
| Health Clubs use Fitness Centers | 
| Health Communication | 
| Health Conditions use Health Status | 
| Health Conferences | 
| Health Consortia | 
| Health Consortium use Health Consortia | 
| Health Control use Health Surveillance | 
| Health Costs, Employer use Employer Health Costs | 
| Health Councils | 
| Health Danger Provoked by Substances, Products and Materials | 
| Health Defense use Health Advocacy | 
| Health Diaries use Medical Records | 
| Health Economics | 
| Health Education | 
| Health Education, Dental | 
| Health Educators | 
| Health Effects of Disasters | 
| Health Evaluation | 
| Health Expenditures | 
| Health Facilities | 
| Health Facilities, Proprietary | 
| Health Facility Acquisition use Health Facility Merger | 
| Health Facility Administrators | 
| Health Facility Closure | 
| Health Facility Conversion use Health Facility Planning | 
| Health Facility Environment | 
| Health Facility Merger | 
| Health Facility Moving | 
| Health Facility Planning | 
| Health Facility Size | 
| Health Fairs | 
| Health Financial Support use Financing, Health | 
| Health Food | 
| Health Human Resource Evaluation | 
| Health Human Resource Training | 
| Health Inequalities | 
| Health Inequality use Health Inequalities | 
| Health Inequity use Health Inequalities | 
| Health Information, Consumer use Consumer Health Information | 
| Health Infrastructure | 
| Health Insurance use Insurance, Health | 
| Health Insurance Portability and Accountability Act | 
| Health Insurance Reimbursement use Insurance, Health, Reimbursement | 
| Health Insurance for Aged and Disabled, Title 18 use Medicare | 
| Health Insurance, Voluntary use Insurance, Health | 
| Health Investment Reorientation use Investments | 
| Health Investments use Investments | 
| Health Knowledge, Attitudes, Practice | 
| Health Law | 
| Health Legislation use Legislation as Topic | 
| Health Maintenance Organizations | 
| Health Management | 
| Health Manager | 
| Health Managers use Health Manager | 
| Health Manpower | 
| Health Occupations | 
| Health Occupations Manpower use Health Manpower | 
| Health Occupations Schools use Schools, Health Occupations | 
| Health Organizations | 
| Health Personnel | 
| Health Personnel Administration use Health Personnel Management | 
| Health Personnel Management | 
| Health Physics | 
| Health Plan Implementation | 
| Health Planning | 
| Health Planning Councils | 
| Health Planning Guidelines | 
| Health Planning Organizations | 
| Health Planning Support | 
| Health Planning Technical Assistance | 
| Health Plans and Programmes use Health Programs and Plans | 
| Health Plans and Programs use Health Programs and Plans | 
| Health Plans, Accountable use Managed Competition | 
| Health Plans, Prepaid use Prepaid Health Plans | 
| Health Plans, Programs and Projects use Health Programs and Plans | 
| Health Policy | 
| Health Policy, Planning and Management | 
| Health Postgraduate Programs | 
| Health Posts use Health Centers | 
| Health Priorities | 
| Health Priority Agenda | 
| Health Professions use Health Occupations | 
| Health Profile | 
| Health Program and Project Evaluation use Program Evaluation | 
| Health Programmes and Plans use Health Programs and Plans | 
| Health Programmes and Projects use Health Programs and Plans | 
| Health Programs and Plans | 
| Health Programs and Projects use Health Programs and Plans | 
| Health Promotion | 
| Health Psychology use Behavioral Medicine | 
| Health Public Policy | 
| Health Quality Management use Quality Management | 
| Health Records, Personal use Medical Records | 
| Health Regulation and Fiscalization | 
| Health Research Agenda | 
| Health Research Evaluation | 
| Health Research Plans and Programs | 
| Health Research Policy | 
| Health Resorts | 
| Health Resources | 
| Health Resources Administration (U.S.) use United States Health Resources and Services Administration | 
| Health Rights use Right to Health | 
| Health Risk | 
| Health Risk Appraisal use Health Status Indicators | 
| Health Sciences | 
| Health Sciences, Technology and Innovation Management | 
| Health Service Area use Catchment Area (Health) | 
| Health Services | 
| Health Services Accessibility | 
| Health Services Administration | 
| Health Services Coverage | 
| Health Services Epidemiology | 
| Health Services Evaluation | 
| Health Services Marketing use Marketing of Health Services | 
| Health Services Misuse | 
| Health Services Needs and Demand | 
| Health Services Package use Basic Health Services | 
| Health Services Research | 
| Health Services Statistics | 
| Health Services and Mental Health Administration (U.S.) use United States Substance Abuse and Mental Health Services Administration | 
| Health Services for the Aged | 
| Health Services, Adolescent use Adolescent Health Services | 
| Health Services, Indigenous | 
| Health Services, Women's use Women's Health Services | 
| Health Situation Assessment use Diagnosis of Health Situation | 
| Health Statistics | 
| Health Status | 
| Health Status Disparities | 
| Health Status Index use Health Status Indicators | 
| Health Status Indicators | 
| Health Status of Institutionalized Adolescents use Health of Institutionalized Adolescents | 
| Health Status of Institutionalized Children use Health of Institutionalized Children | 
| Health Status of Institutionalized Elderly use Health of Institutionalized Elderly | 
| Health Surveillance | 
| Health Surveillance Services | 
| Health Surveillance System | 
| Health Surveillance of Environments | 
| Health Surveillance of Health Services | 
| Health Surveillance of Products | 
| Health Surveys | 
| Health System use Health Systems | 
| Health Systems | 
| Health Systems Agencies | 
| Health Systems Plans | 
| Health Technology use Biomedical Technology | 
| Health Transition | 
| Health Visitors use Community Health Nursing | 
| Health Vulnerability | 
| Health and Environment use Environmental Health | 
| Health and Inequality use Health Inequalities | 
| Health and Welfare Planning use Health Planning | 
| Health and the Environment use Environmental Health | 
| Health for All by the Year 2000 use World Strategies | 
| Health of Aged Persons use Health of the Elderly | 
| Health of Disabled People use Disabled Health | 
| Health of Disabled Persons use Disabled Health | 
| Health of Elders use Health of the Elderly | 
| Health of Handicapped Persons use Disabled Health | 
| Health of Institutionalized Adolescents | 
| Health of Institutionalized Children | 
| Health of Institutionalized Elderly | 
| Health of Native Populations use Indigenous Health | 
| Health of People with Disabilities use Disabled Health | 
| Health of Persons with Disabilities use Disabled Health | 
| Health of Rural Populations use Rural Health | 
| Health of Specific Groups | 
| Health of Specific Population Groups use Health of Specific Groups | 
| Health of Travelers use Travelers' Health | 
| Health of Travellers use Travelers' Health | 
| Health of Urban Populations use Urban Health | 
| Health of the Aged use Health of the Elderly | 
| Health of the Disabled use Disabled Health | 
| Health of the Elderly | 
| Health of the Handicapped use Disabled Health | 
| Health-Disease Process | 
| Healthcare Common Procedure Coding System | 
| Healthcare Disparities | 
| Healthcare Industry use Health Care Sector | 
| Healthcare Surveys use Health Care Surveys | 
| Healthy Agriculture use Organic Agriculture | 
| Healthy City | 
| Healthy Municipality use Healthy City | 
| Healthy People 2010 use Healthy People Programs | 
| Healthy People Programs | 
| Healthy Worker Effect | 
| Hearing | 
| Hearing Aids | 
| Hearing Disorders | 
| Hearing Impaired Persons | 
| Hearing Impaired Rehabilitation use Rehabilitation of Hearing Impaired | 
| Hearing Impairment use Hearing Loss | 
| Hearing Loss | 
| Hearing Loss, Bilateral | 
| Hearing Loss, Central | 
| Hearing Loss, Conductive | 
| Hearing Loss, Functional | 
| Hearing Loss, High-Frequency | 
| Hearing Loss, Mixed Conductive-Sensorineural | 
| Hearing Loss, Noise-Induced | 
| Hearing Loss, Nonorganic use Hearing Loss, Functional | 
| Hearing Loss, Sensorineural | 
| Hearing Loss, Sudden | 
| Hearing Loss, Unilateral | 
| Hearing Protective Devices use Ear Protective Devices | 
| Hearing Tests | 
| Heart | 
| Heart Abnormalities use Heart Defects, Congenital | 
| Heart Aneurysm | 
| Heart Arrest | 
| Heart Arrest, Induced | 
| Heart Atria | 
| Heart Atrium use Heart Atria | 
| Heart Atrium Appendage use Atrial Appendage | 
| Heart Auscultation | 
| Heart Block | 
| Heart Bypass, Left | 
| Heart Bypass, Right | 
| Heart Catheterization | 
| Heart Conduction System | 
| Heart Contractility use Myocardial Contraction | 
| Heart Decompensation use Heart Failure | 
| Heart Defects, Congenital | 
| Heart Disease, Ischemic use Myocardial Ischemia | 
| Heart Diseases | 
| Heart Failure | 
| Heart Failure, Diastolic | 
| Heart Failure, Systolic | 
| Heart Function Tests | 
| Heart Hypertrophy use Cardiomegaly | 
| Heart Injuries | 
| Heart Massage | 
| Heart Mitochondria use Mitochondria, Heart | 
| Heart Murmurs | 
| Heart Neoplasms | 
| Heart Rate | 
| Heart Rate Control use Heart Rate | 
| Heart Rate, Fetal | 
| Heart Rupture | 
| Heart Rupture, Post-Infarction | 
| Heart Rupture, Traumatic use Heart Injuries | 
| Heart Septa use Heart Septum | 
| Heart Septal Defects | 
| Heart Septal Defects, Atrial | 
| Heart Septal Defects, Ventricular | 
| Heart Septum | 
| Heart Sounds | 
| Heart Surgery use Thoracic Surgery | 
| Heart Transplantation | 
| Heart Valve Diseases | 
| Heart Valve Prolapse | 
| Heart Valve Prosthesis | 
| Heart Valve Prosthesis Implantation | 
| Heart Valves | 
| Heart Ventricle, Artificial use Heart-Assist Devices | 
| Heart Ventricles | 
| Heart Volume use Cardiac Volume | 
| Heart, Artificial | 
| Heart-Assist Devices | 
| Heart-Lung Bypass use Cardiopulmonary Bypass | 
| Heart-Lung Machine | 
| Heart-Lung Transplantation | 
| Heartburn | 
| Hearts of Palm use Canned Heart Palms | 
| Heartwater Disease | 
| Heartworm Disease use Dirofilariasis | 
| Heat | 
| Heat Collapse use Heat Exhaustion | 
| Heat Cramps use Heat Stress Disorders | 
| Heat Exhaustion | 
| Heat Loss use Body Temperature Regulation | 
| Heat Loss (Environmental Health) | 
| Heat Production use Thermogenesis | 
| Heat Prostration use Heat Exhaustion | 
| Heat Shock Proteins 72 use HSP72 Heat-Shock Proteins | 
| Heat Stress Disorders | 
| Heat Stress Syndromes use Heat Stress Disorders | 
| Heat Stroke | 
| Heat Transference | 
| Heat Wave | 
| Heat Waves use Infrared Rays | 
| Heat-Shock Cognate 70 Protein use HSC70 Heat-Shock Proteins | 
| Heat-Shock Protein 47 use HSP47 Heat-Shock Proteins | 
| Heat-Shock Proteins | 
| Heat-Shock Proteins 10 use Chaperonin 10 | 
| Heat-Shock Proteins 110 use HSP110 Heat-Shock Proteins | 
| Heat-Shock Proteins 20 use HSP20 Heat-Shock Proteins | 
| Heat-Shock Proteins 30 use HSP30 Heat-Shock Proteins | 
| Heat-Shock Proteins 40 use HSP40 Heat-Shock Proteins | 
| Heat-Shock Proteins 60 use Chaperonin 60 | 
| Heat-Shock Proteins 70 use HSP70 Heat-Shock Proteins | 
| Heat-Shock Proteins 90 use HSP90 Heat-Shock Proteins | 
| Heat-Shock Proteins, Small | 
| Heat-Shock Reaction use Heat-Shock Response | 
| Heat-Shock Response | 
| Heaters | 
| Heating | 
| Heatwave use Heat Wave | 
| Heavy Chain Disease | 
| Heavy Chain Disease, IgA Type use Immunoproliferative Small Intestinal Disease | 
| Heavy Equipment | 
| Heavy Industries use Metallurgy | 
| Heavy Ions | 
| Heavy Metal Poisoning, Nervous System | 
| Heavy Metals use Metals, Heavy | 
| Heavy Water use Deuterium Oxide | 
| Heavy Water (Environmental Health) | 
| Hebephrenic Schizophrenia use Schizophrenia, Disorganized | 
| Hebrides | 
| Heck's Disease use Focal Epithelial Hyperplasia | 
| Hecla Lava | 
| Hedeoma | 
| Hedeoma pulegioides | 
| Hedera | 
| Hedera helix | 
| Hedgehog Protein, Vertebrate use Hedgehog Proteins | 
| Hedgehog Proteins | 
| Hedgehogs | 
| Hedgenettle use Stachys | 
| Hedonism use Philosophy | 
| Hedychium use Zingiberaceae | 
| Hedyotis | 
| Hedysarum ildefonsianum | 
| Heel | 
| Heel Bone use Calcaneus | 
| Heel Spur | 
| Heel Spur Syndrome use Fasciitis, Plantar | 
| Heerfordt Syndrome use Uveoparotid Fever | 
| Height by Weight | 
| Heinz Bodies | 
| Hekla Lava use Hecla Lava | 
| Hela Cells | 
| Heleborus use Helleborus | 
| Helianthemum use Cistaceae | 
| Helianthus | 
| Helianthus annuus | 
| Helical CT use Tomography, Spiral Computed | 
| Helical Computed Tomography use Tomography, Spiral Computed | 
| Helical Flocculators | 
| Helichrysum | 
| Helicobacter | 
| Helicobacter Infections | 
| Helicobacter felis | 
| Helicobacter heilmannii | 
| Helicobacter hepaticus | 
| Helicobacter mustelae | 
| Helicobacter pylori | 
| Helicobacter suis use Helicobacter heilmannii | 
| Heliconia use Heliconiaceae | 
| Heliconiaceae | 
| Helicopter Ambulances use Air Ambulances | 
| Helicopters use Aircraft | 
| Helicteres use Sterculiaceae | 
| Heligmosomatoidea | 
| Heligmosomoides polygyrus use Nematospiroides dubius | 
| Heliocidaris use Anthocidaris | 
| Heliograph | 
| Heliotherapy | 
| Heliotrope, Garden use Valerian | 
| Heliotrope, True use Heliotropium | 
| Heliotropinum peruvianum | 
| Heliotropism use Phototropism | 
| Heliotropium | 
| Helium | 
| Helium Lasers use Lasers, Gas | 
| Helium Neon Gas Lasers use Lasers, Gas | 
| Helix (Snails) | 
| Helix tosta | 
| Helix-Loop-Helix Motifs | 
| Helix-Turn-Helix Motifs | 
| Hellebore use Helleborus | 
| Hellebore, Black use Veratrum | 
| Hellebore, False use Veratrum | 
| Hellebore, Green use Helleborus | 
| Hellebore, Stinking use Helleborus | 
| Hellebore, White use Veratrum | 
| Helleborus | 
| Helleborus foetidus | 
| Helleborus niger | 
| Helleborus orientalis | 
| Helleborus viridis | 
| Helmets use Head Protective Devices | 
| Helminth Antibodies use Antibodies, Helminth | 
| Helminth Antigens use Antigens, Helminth | 
| Helminth DNA use DNA, Helminth | 
| Helminth Genes use Genes, Helminth | 
| Helminth Genome use Genome, Helminth | 
| Helminth Proteins | 
| Helminth RNA use RNA, Helminth | 
| Helminthiasis | 
| Helminthiasis, Animal | 
| Helminthiasis, Central Nervous System use Central Nervous System Helminthiasis | 
| Helminthochortos | 
| Helminthosporium | 
| Helminths | 
| Heloderma suspectum | 
| Helogale use Herpestidae | 
| Helonias dioica | 
| Heloninum | 
| Helper Cells use T-Lymphocytes, Helper-Inducer | 
| Helper Viruses | 
| Helper-Inducer T-Lymphocytes use T-Lymphocytes, Helper-Inducer | 
| Helping Behavior | 
| Helplessness, Learned | 
| Helsinki Declaration | 
| Hemachatus use Cobra | 
| Hemadsorption | 
| Hemadsorption Inhibition Tests | 
| Hemadsorption Virus 1 use Parainfluenza Virus 3, Human | 
| Hemadsorption Virus 2 use Parainfluenza Virus 1, Human | 
| Hemagglutinating Virus of Japan use Sendai virus | 
| Hemagglutination | 
| Hemagglutination Inhibition Tests | 
| Hemagglutination Tests | 
| Hemagglutination, Viral | 
| Hemagglutinin Glycoproteins, Influenza Virus | 
| Hemagglutinin-Neuraminidase Glycoprotein use HN Protein | 
| Hemagglutinins | 
| Hemagglutinins, Viral | 
| Hemangioblastoma | 
| Hemangioendothelioma | 
| Hemangioendothelioma, Epithelioid | 
| Hemangioma | 
| Hemangioma, Capillary | 
| Hemangioma, Cavernous | 
| Hemangioma, Cavernous, Central Nervous System | 
| Hemangioma, Histiocytoid use Hemangioma | 
| Hemangioma, Intramuscular use Hemangioma | 
| Hemangioma, Lobular Capillary use Granuloma, Pyogenic | 
| Hemangioma, Sclerosing use Histiocytoma, Benign Fibrous | 
| Hemangiopericytoma | 
| Hemangiosarcoma | 
| Hemarthrosis | 
| Hematemesis | 
| Hematin use Hemin | 
| Hematinics | 
| Hemato-Encephalic Barrier use Blood-Brain Barrier | 
| Hematocele | 
| Hematochezia use Gastrointestinal Hemorrhage | 
| Hematocolpos | 
| Hematocrit | 
| Hematologic Agents | 
| Hematologic Diseases | 
| Hematologic Malignancies use Hematologic Neoplasms | 
| Hematologic Neoplasms | 
| Hematologic Tests | 
| Hematology | 
| Hematoma | 
| Hematoma, Epidural, Cranial | 
| Hematoma, Epidural, Spinal | 
| Hematoma, Subdural | 
| Hematoma, Subdural, Acute | 
| Hematoma, Subdural, Chronic | 
| Hematoma, Subdural, Intracranial | 
| Hematoma, Subdural, Spinal | 
| Hematometra | 
| Hematomyelia use Spinal Cord Vascular Diseases | 
| Hematopoiesis | 
| Hematopoiesis, Extramedullary | 
| Hematopoiesis, Medullary use Hematopoiesis | 
| Hematopoietic Agents use Hematinics | 
| Hematopoietic Cell Growth Factors | 
| Hematopoietic Growth Factors Receptors use Receptors, Colony-Stimulating Factor | 
| Hematopoietic Neoplasms use Hematologic Neoplasms | 
| Hematopoietic Stem Cell Mobilization | 
| Hematopoietic Stem Cell Purging use Bone Marrow Purging | 
| Hematopoietic Stem Cell Transplantation | 
| Hematopoietic Stem Cells | 
| Hematopoietic System | 
| Hematopoietins use Hematopoietic Cell Growth Factors | 
| Hematoporphyrin D use Hematoporphyrin Derivative | 
| Hematoporphyrin Derivative | 
| Hematoporphyrin Photoradiation | 
| Hematoporphyrins | 
| Hematoside use G(M3) Ganglioside | 
| Hematoxylin | 
| Hematuria | 
| Heme | 
| Heme Oxygenase (Decyclizing) | 
| Heme Oxygenase-1 | 
| Heme Synthetase use Ferrochelatase | 
| Hemel use Altretamine | 
| Hemeproteins | 
| Hemeralopia use Vision Disorders | 
| Hemerocallis | 
| Hemerythrin | 
| Hemi-Fontan Procedure use Fontan Procedure | 
| Hemianopsia | 
| Hemianopsia, Binasal use Hemianopsia | 
| Hemianopsia, Bitemporal use Hemianopsia | 
| Hemianopsia, Homonymous use Hemianopsia | 
| Hemiballismus use Dyskinesias | 
| Hemibody Irradiation | 
| Hemic and Immune Systems | 
| Hemic and Lymphatic Diseases | 
| Hemicentrotus | 
| Hemicholinium 3 | 
| Hemicrania use Headache | 
| Hemidesmosomes | 
| Hemidesmus | 
| Hemifacial Atrophy use Facial Hemiatrophy | 
| Hemifacial Microsomia use Facial Asymmetry | 
| Hemifacial Myokymia use Hemifacial Spasm | 
| Hemifacial Paralysis use Facial Paralysis | 
| Hemifacial Spasm | 
| Hemihydranencephaly use Hydranencephaly | 
| Hemimelia use Ectromelia | 
| Hemin | 
| Hemiparesis use Paresis | 
| Hemipelvectomy | 
| Hemiplegia | 
| Hemiptera | 
| Hemispatial Neglect use Perceptual Disorders | 
| Hemispherectomy | 
| Hemispinal Cord Syndrome use Brown-Sequard Syndrome | 
| Hemiterpenes | 
| Hemlock | 
| Hemlock Tree use Tsuga | 
| Hemlock, Poison use Conium | 
| Hemlock, Spotted Water use Cicuta | 
| Hemlock, Water use Cicuta | 
| Hemobilia | 
| Hemochromatosis | 
| Hemocoagulase use Batroxobin | 
| Hemocompatibility Testing use Materials Testing | 
| Hemocuprein use Superoxide Dismutase | 
| Hemocyanin | 
| Hemocytes | 
| Hemoderivative Drugs | 
| Hemoderived Products use Hemoderivative Drugs | 
| Hemodiafiltration | 
| Hemodialysis use Renal Dialysis | 
| Hemodialysis Solutions | 
| Hemodialysis Units, Hospital | 
| Hemodialysis, Home | 
| Hemodilution | 
| Hemodynamics | 
| Hemofiltration | 
| Hemofiltration, Continuous Arteriovenous use Hemofiltration | 
| Hemoglobin A | 
| Hemoglobin A(1) use Hemoglobin A, Glycosylated | 
| Hemoglobin A, Glycosylated | 
| Hemoglobin A2 | 
| Hemoglobin C | 
| Hemoglobin C Disease | 
| Hemoglobin E | 
| Hemoglobin F use Fetal Hemoglobin | 
| Hemoglobin F Disease use beta-Thalassemia | 
| Hemoglobin H | 
| Hemoglobin H Disease use alpha-Thalassemia | 
| Hemoglobin J | 
| Hemoglobin M | 
| Hemoglobin S use Hemoglobin, Sickle | 
| Hemoglobin S Disease use Anemia, Sickle Cell | 
| Hemoglobin SC Disease | 
| Hemoglobin Substitutes use Blood Substitutes | 
| Hemoglobin, Erythrocyte, Mean Cell use Erythrocyte Indices | 
| Hemoglobin, Sickle | 
| Hemoglobinometry | 
| Hemoglobinopathies | 
| Hemoglobins | 
| Hemoglobins, Abnormal | 
| Hemoglobins, Truncated use Truncated Hemoglobins | 
| Hemoglobinuria | 
| Hemoglobinuria, Paroxysmal | 
| Hemolymph | 
| Hemolysin Factors | 
| Hemolysin Proteins | 
| Hemolysins use Hemolysin Proteins | 
| Hemolysis | 
| Hemolytic Agents | 
| Hemolytic Anemia use Anemia, Hemolytic | 
| Hemolytic Anemia, Autoimmune use Anemia, Hemolytic, Autoimmune | 
| Hemolytic Disease of Newborn use Erythroblastosis, Fetal | 
| Hemolytic Plaque Technique | 
| Hemolytic Titration Assay use Complement Hemolytic Activity Assay | 
| Hemolytic-Uremic Syndrome | 
| Hemoperfusion | 
| Hemopericardium use Pericardial Effusion | 
| Hemoperitoneum | 
| Hemopexin | 
| Hemophagocytic Lymphohistiocytosis, Familial use Lymphohistiocytosis, Hemophagocytic | 
| Hemophagocytic Syndrome, Infection-Associated use Lymphohistiocytosis, Hemophagocytic | 
| Hemophagocytic Syndrome, Reactive use Lymphohistiocytosis, Hemophagocytic | 
| Hemophagocytic Syndromes use Lymphohistiocytosis, Hemophagocytic | 
| Hemophilia use Hemophilia A | 
| Hemophilia A | 
| Hemophilia B | 
| Hemophilia C use Factor XI Deficiency | 
| Hemophilia, Vascular use von Willebrand Disease | 
| Hemophilius parainfluenzae use Haemophilus parainfluenzae | 
| Hemophilus use Haemophilus | 
| Hemophilus Infections use Haemophilus Infections | 
| Hemophilus ducreyi use Haemophilus ducreyi | 
| Hemophilus influenzae use Haemophilus influenzae | 
| Hemophilus influenzae type b use Haemophilus influenzae type b | 
| Hemophilus paragallinarum use Haemophilus paragallinarum | 
| Hemophilus paraphrophilus use Haemophilus paraphrophilus | 
| Hemophilus parasuis use Haemophilus parasuis | 
| Hemophilus somnus use Haemophilus somnus | 
| Hemophthalmos use Eye Hemorrhage | 
| Hemopneumothorax | 
| Hemoptysis | 
| Hemorheology | 
| Hemorrhage | 
| Hemorrhage, Basal Ganglia use Basal Ganglia Hemorrhage | 
| Hemorrhage, Biliary Tract use Hemobilia | 
| Hemorrhage, Brain Stem, Traumatic use Brain Stem Hemorrhage, Traumatic | 
| Hemorrhage, Cerebral use Cerebral Hemorrhage | 
| Hemorrhage, Choroid use Choroid Hemorrhage | 
| Hemorrhage, Cranial Epidural use Hematoma, Epidural, Cranial | 
| Hemorrhage, Eye use Eye Hemorrhage | 
| Hemorrhage, Fetomaternal use Fetomaternal Transfusion | 
| Hemorrhage, Gastrointestinal use Gastrointestinal Hemorrhage | 
| Hemorrhage, Gingival use Gingival Hemorrhage | 
| Hemorrhage, Intracranial use Intracranial Hemorrhages | 
| Hemorrhage, Intracranial, Traumatic use Intracranial Hemorrhage, Traumatic | 
| Hemorrhage, Oral use Oral Hemorrhage | 
| Hemorrhage, Peptic Ulcer use Peptic Ulcer Hemorrhage | 
| Hemorrhage, Postoperative use Postoperative Hemorrhage | 
| Hemorrhage, Postpartum use Postpartum Hemorrhage | 
| Hemorrhage, Putamen use Putaminal Hemorrhage | 
| Hemorrhage, Retinal use Retinal Hemorrhage | 
| Hemorrhage, Retrobulbar use Retrobulbar Hemorrhage | 
| Hemorrhage, Spinal Epidural use Hematoma, Epidural, Spinal | 
| Hemorrhage, Subarachnoid use Subarachnoid Hemorrhage | 
| Hemorrhage, Subdural use Hematoma, Subdural | 
| Hemorrhage, Subdural, Acute use Hematoma, Subdural, Acute | 
| Hemorrhage, Subdural, Chronic use Hematoma, Subdural, Chronic | 
| Hemorrhage, Surgical use Blood Loss, Surgical | 
| Hemorrhage, Uterine use Uterine Hemorrhage | 
| Hemorrhage, Vitreous use Vitreous Hemorrhage | 
| Hemorrhagic Bacteremia use Hemorrhagic Septicemia | 
| Hemorrhagic Diathesis use Hemorrhagic Disorders | 
| Hemorrhagic Disease Virus, Epizootic | 
| Hemorrhagic Disease Virus, Rabbit | 
| Hemorrhagic Disease Virus, Simian use Arterivirus | 
| Hemorrhagic Disease of Newborn | 
| Hemorrhagic Disorders | 
| Hemorrhagic Fever Renal Syndrome Virus use Hantaan virus | 
| Hemorrhagic Fever Virus, Argentinian use Junin virus | 
| Hemorrhagic Fever Virus, Bolivian use Arenaviruses, New World | 
| Hemorrhagic Fever Virus, Crimean use Hemorrhagic Fever Virus, Crimean-Congo | 
| Hemorrhagic Fever Virus, Crimean-Congo | 
| Hemorrhagic Fever Virus, Epidemic use Hantaan virus | 
| Hemorrhagic Fever Virus, Korean use Hantaan virus | 
| Hemorrhagic Fever Virus, Omsk use Encephalitis Viruses, Tick-Borne | 
| Hemorrhagic Fever Viruses, American use Arenaviruses, New World | 
| Hemorrhagic Fever with Renal Syndrome | 
| Hemorrhagic Fever, American | 
| Hemorrhagic Fever, Argentinian use Hemorrhagic Fever, American | 
| Hemorrhagic Fever, Bolivian use Hemorrhagic Fever, American | 
| Hemorrhagic Fever, Crimean | 
| Hemorrhagic Fever, Dengue use Dengue Hemorrhagic Fever | 
| Hemorrhagic Fever, Ebola | 
| Hemorrhagic Fever, Epidemic use Hemorrhagic Fever with Renal Syndrome | 
| Hemorrhagic Fever, Korean use Hemorrhagic Fever with Renal Syndrome | 
| Hemorrhagic Fever, Omsk | 
| Hemorrhagic Fevers, Viral | 
| Hemorrhagic Nephroso-Nephritis use Hemorrhagic Fever with Renal Syndrome | 
| Hemorrhagic Nephroso-Nephritis Virus use Hantaan virus | 
| Hemorrhagic Septicemia | 
| Hemorrhagic Septicemia Virus, Viral use Novirhabdovirus | 
| Hemorrhagic Septicemia, Viral | 
| Hemorrhagic Shock use Shock, Hemorrhagic | 
| Hemorrhagic Syndrome, Bovine | 
| Hemorrhagic Thrombocythemia use Thrombocythemia, Hemorrhagic | 
| Hemorrhoids | 
| Hemosiderin | 
| Hemosiderosis | 
| Hemosorption use Hemoperfusion | 
| Hemospermia | 
| Hemostasis | 
| Hemostasis, Endoscopic | 
| Hemostasis, Surgical | 
| Hemostatic Disorders | 
| Hemostatic Techniques | 
| Hemostatics | 
| Hemotherapy Center use Hemotherapy Service | 
| Hemotherapy Centre use Hemotherapy Service | 
| Hemotherapy Nucleus use Hemotherapy Service | 
| Hemotherapy Service | 
| Hemothorax | 
| Hemotoxins use Hemolytic Agents | 
| Hemp use Cannabis | 
| Hempa | 
| Henbane use Hyoscyamus | 
| Henderson-Jones Syndrome use Chondromatosis, Synovial | 
| Hendra Virus | 
| Henipavirus | 
| Henipavirus Infections | 
| Henna Plant use Lawsonia Plant | 
| Henneberg Syndrome use Cataplexy | 
| Henoch Purpura use Purpura, Schoenlein-Henoch | 
| Henoch-Schoenlein Purpura use Purpura, Schoenlein-Henoch | 
| Hensen Node use Organizers, Embryonic | 
| Hepacivirus | 
| Hepadnaviridae | 
| Hepadnaviridae Infections | 
| Hepar Sulphuris Calcareum | 
| Hepar Sulphuris Kalinum use Kali Sulphuratum | 
| Heparan Sulfate use Heparitin Sulfate | 
| Heparan Sulfate Proteoglycan use Heparan Sulfate Proteoglycans | 
| Heparan Sulfate Proteoglycans | 
| Heparin | 
| Heparin Antagonists | 
| Heparin Cofactor I use Antithrombin III | 
| Heparin Cofactor II | 
| Heparin Eliminase use Heparin Lyase | 
| Heparin Lyase | 
| Heparin, Low-Molecular-Weight | 
| Heparin-Binding Fibroblast Growth Factor Class I use Fibroblast Growth Factor 1 | 
| Heparin-Binding Growth Factor, Class I use Fibroblast Growth Factor 1 | 
| Heparin-Clearing Factor use Lipoprotein Lipase | 
| Heparinase use Heparin Lyase | 
| Heparinase I use Heparin Lyase | 
| Heparinic Acid use Heparin | 
| Heparinoids | 
| Heparitin Sulfate | 
| Hepatectomy | 
| Hepatic Amebiasis use Liver Abscess, Amebic | 
| Hepatic Artery | 
| Hepatic Cancer use Liver Neoplasms | 
| Hepatic Cells use Hepatocytes | 
| Hepatic Circulation use Liver Circulation | 
| Hepatic Cirrhosis use Liver Cirrhosis | 
| Hepatic Cirrhosis, Experimental use Liver Cirrhosis, Experimental | 
| Hepatic Duct, Common | 
| Hepatic Encephalopathy | 
| Hepatic Entamoebiasis use Liver Abscess, Amebic | 
| Hepatic Failure, Fulminant use Liver Failure, Acute | 
| Hepatic Glycogen use Liver Glycogen | 
| Hepatic Insufficiency | 
| Hepatic Porphyria use Porphyrias, Hepatic | 
| Hepatic Portoenterostomy use Portoenterostomy, Hepatic | 
| Hepatic Transplantation use Liver Transplantation | 
| Hepatic Veins | 
| Hepatic Veno-Occlusive Disease | 
| Hepatic Venous Outflow Obstruction use Budd-Chiari Syndrome | 
| Hepatica use Ranunculaceae | 
| Hepatica triloba | 
| Hepaticola hepatica use Capillaria | 
| Hepatitis | 
| Hepatitis A | 
| Hepatitis A Antibodies | 
| Hepatitis A Antigens | 
| Hepatitis A Vaccines | 
| Hepatitis A Virus Antibodies use Hepatitis A Antibodies | 
| Hepatitis A Virus, Human | 
| Hepatitis A virus | 
| Hepatitis Antibodies | 
| Hepatitis Antigens | 
| Hepatitis B | 
| Hepatitis B Antibodies | 
| Hepatitis B Antigens | 
| Hepatitis B Core Antigens | 
| Hepatitis B Surface Antigens | 
| Hepatitis B Vaccines | 
| Hepatitis B Virus, Duck | 
| Hepatitis B Virus, Ground Squirrel use Orthohepadnavirus | 
| Hepatitis B Virus, Woodchuck | 
| Hepatitis B e Antigens | 
| Hepatitis B virus | 
| Hepatitis B, Chronic | 
| Hepatitis C | 
| Hepatitis C Antibodies | 
| Hepatitis C Antigens | 
| Hepatitis C Virus use Hepacivirus | 
| Hepatitis C, Chronic | 
| Hepatitis D | 
| Hepatitis D Antigens use Hepatitis delta Antigens | 
| Hepatitis D Virus use Hepatitis Delta Virus | 
| Hepatitis D, Chronic | 
| Hepatitis Delta Virus | 
| Hepatitis E | 
| Hepatitis E Virus, Avian use Hepevirus | 
| Hepatitis E virus | 
| Hepatitis G virus use GB virus C | 
| Hepatitis Virus, Duck | 
| Hepatitis Virus, Homologous Serum use Hepatitis B virus | 
| Hepatitis Virus, Infectious use Hepatovirus | 
| Hepatitis Virus, Infectious Canine use Adenoviruses, Canine | 
| Hepatitis Virus, Marmoset use Hepatitis Viruses | 
| Hepatitis Virus, Mouse use Murine hepatitis virus | 
| Hepatitis Virus, Woodchuck use Hepatitis B Virus, Woodchuck | 
| Hepatitis Viruses | 
| Hepatitis delta Antigens | 
| Hepatitis, Alcoholic | 
| Hepatitis, Alcoholic, Chronic use Hepatitis, Alcoholic | 
| Hepatitis, Animal | 
| Hepatitis, Autoimmune | 
| Hepatitis, Chronic | 
| Hepatitis, Chronic, Cryptogenic use Hepatitis, Chronic | 
| Hepatitis, Chronic, Drug-Induced | 
| Hepatitis, Delta use Hepatitis D | 
| Hepatitis, Drug-Induced use Hepatitis, Toxic | 
| Hepatitis, Infectious use Hepatitis A | 
| Hepatitis, Infectious Canine | 
| Hepatitis, Toxic | 
| Hepatitis, Viral, Animal | 
| Hepatitis, Viral, Human | 
| Hepatitis, Viral, Non-A, Non-B, Enterically-Transmitted use Hepatitis E | 
| Hepatitis, Viral, Non-A, Non-B, Parenterally-Transmitted use Hepatitis C | 
| Hepatitis, Viral, Vaccines use Viral Hepatitis Vaccines | 
| Hepatitis, Water-Borne use Hepatitis E | 
| Hepatoblastoma | 
| Hepatocellular Carcinoma use Carcinoma, Hepatocellular | 
| Hepatocyte Growth Factor | 
| Hepatocyte Growth Factor Receptor use Proto-Oncogene Proteins c-met | 
| Hepatocyte Nuclear Factor 1 | 
| Hepatocyte Nuclear Factor 1-alpha | 
| Hepatocyte Nuclear Factor 1-beta | 
| Hepatocyte Nuclear Factor 3-alpha | 
| Hepatocyte Nuclear Factor 3-beta | 
| Hepatocyte Nuclear Factor 3-gamma | 
| Hepatocyte Nuclear Factor 4 | 
| Hepatocyte Nuclear Factor 6 | 
| Hepatocyte Nuclear Factors | 
| Hepatocyte-Stimulating Factor use Interleukin-6 | 
| Hepatocytes | 
| Hepatoerythropoietic Porphyria use Porphyria, Hepatoerythropoietic | 
| Hepatolenticular Degeneration | 
| Hepatology use Gastroenterology | 
| Hepatoma use Carcinoma, Hepatocellular | 
| Hepatoma, Benign use Adenoma, Liver Cell | 
| Hepatoma, Experimental use Liver Neoplasms, Experimental | 
| Hepatoma, Morris use Liver Neoplasms, Experimental | 
| Hepatoma, Novikoff use Liver Neoplasms, Experimental | 
| Hepatomegaly | 
| Hepatopancreas | 
| Hepatophyta | 
| Hepatopoietin use Hepatocyte Growth Factor | 
| Hepatopoietin A use Hepatocyte Growth Factor | 
| Hepatoprotector Drugs | 
| Hepatopulmonary Syndrome | 
| Hepatorenal Glycogen Storage Disease use Glycogen Storage Disease Type I | 
| Hepatorenal Syndrome | 
| Hepatovirus | 
| Hepevirus | 
| Heptachlor | 
| Heptachlor Epoxide | 
| Heptaminol | 
| Heptanes | 
| Heptanoates | 
| Heptanoic Acids | 
| Heptanol | 
| Heptoses | 
| Heracleum | 
| Heracleum sphondylium | 
| Heraldry use Genealogy and Heraldry | 
| Herb Therapy use Phytotherapy | 
| Herb-Drug Interactions | 
| Herbal Medicine use Medicine, Herbal | 
| Herbal Preparations use Plant Preparations | 
| Herbal Teas use Beverages | 
| Herbalism use Medicine, Herbal | 
| Herbals | 
| Herbaspirillum | 
| Herbicide Resistance | 
| Herbicides | 
| Herbs, Medicinal use Plants, Medicinal | 
| Hercumpuri use Gentianella | 
| Herd Immunity use Immunity, Herd | 
| Hereditary Central Nervous System Demyelinating Diseases | 
| Hereditary Coagulation Disorders use Blood Coagulation Disorders, Inherited | 
| Hereditary Diseases use Genetic Diseases, Inborn | 
| Hereditary Diseases, Neurodegenerative use Heredodegenerative Disorders, Nervous System | 
| Hereditary Motor and Sensory Neuropathies | 
| Hereditary Motor and Sensory-Neuropathy Type II use Charcot-Marie-Tooth Disease | 
| Hereditary Motor, and Sensory Neuropathy Type I use Charcot-Marie-Tooth Disease | 
| Hereditary Multiple Exostoses use Exostoses, Multiple Hereditary | 
| Hereditary Nonpolyposis Colorectal Cancer use Colorectal Neoplasms, Hereditary Nonpolyposis | 
| Hereditary Nonpolyposis Colorectal Neoplasms use Colorectal Neoplasms, Hereditary Nonpolyposis | 
| Hereditary Opalescent Dentin use Dentinogenesis Imperfecta | 
| Hereditary Optic Atrophy use Optic Atrophies, Hereditary | 
| Hereditary Periodic Fever Syndromes use Familial Mediterranean Fever | 
| Hereditary Sensory and Autonomic Neuropathies | 
| Hereditary Spastic Paraplegia use Spastic Paraplegia, Hereditary | 
| Hereditary Spinal Sclerosis use Friedreich Ataxia | 
| Hereditary, Type III, Motor and Sensory Neuropathy use Hereditary Motor and Sensory Neuropathies | 
| Hereditary, Type VII, Motor and Sensory Neuropathy use Hereditary Motor and Sensory Neuropathies | 
| Hereditary-Sensory and Autonomic Neuropathy Type III use Dysautonomia, Familial | 
| Heredity | 
| Heredodegenerative Disorders, Nervous System | 
| Heredopathia Atactica Polyneuritiformis use Refsum Disease | 
| Heregulin use Neuregulin-1 | 
| Herellea use Acinetobacter | 
| Hering Laws use Cure Laws | 
| Herlitz Disease use Epidermolysis Bullosa, Junctional | 
| Hermanski-Pudlak Syndrome | 
| Hermaphroditism | 
| Hermaphroditism, True | 
| Hermes Antigen Family use Receptors, Lymphocyte Homing | 
| Hermissenda | 
| Hermit Crab use Anomura | 
| Hernandiaceae | 
| Hernia | 
| Hernia, Abdominal | 
| Hernia, Cerebral use Encephalocele | 
| Hernia, Diaphragmatic | 
| Hernia, Diaphragmatic, Traumatic | 
| Hernia, Esophageal use Hernia, Hiatal | 
| Hernia, Femoral | 
| Hernia, Hiatal | 
| Hernia, Inguinal | 
| Hernia, Obturator | 
| Hernia, Paraesophageal use Hernia, Hiatal | 
| Hernia, Umbilical | 
| Hernia, Ventral | 
| Herniation of Meninges use Meningocele | 
| Heroin | 
| Heroin Abuse use Heroin Dependence | 
| Heroin Addiction use Heroin Dependence | 
| Heroin Dependence | 
| Heroin Users use Heroin Dependence | 
| Herpangina | 
| Herpes Genitalis | 
| Herpes Labialis | 
| Herpes Simplex | 
| Herpes Simplex Encephalitis use Encephalitis, Herpes Simplex | 
| Herpes Simplex Keratitis use Keratitis, Herpetic | 
| Herpes Simplex Virus use Simplexvirus | 
| Herpes Simplex Virus 1 use Herpesvirus 1, Human | 
| Herpes Simplex Virus 2 use Herpesvirus 2, Human | 
| Herpes Simplex Virus Protein VP16 use Herpes Simplex Virus Protein Vmw65 | 
| Herpes Simplex Virus Protein Vmw65 | 
| Herpes Simplex Virus Transcriptional Activator Vmw65 use Herpes Simplex Virus Protein Vmw65 | 
| Herpes Simplex Virus Vaccines | 
| Herpes Simplex, Genital use Herpes Genitalis | 
| Herpes Simplex, Labial use Herpes Labialis | 
| Herpes Simplex, Ocular use Keratitis, Herpetic | 
| Herpes Simplex, Oral use Stomatitis, Herpetic | 
| Herpes Zoster | 
| Herpes Zoster Encephalitis use Encephalitis, Varicella Zoster | 
| Herpes Zoster Ophthalmicus | 
| Herpes Zoster Oticus | 
| Herpes Zoster Vaccine | 
| Herpes Zoster, Ocular use Herpes Zoster Ophthalmicus | 
| Herpes labialis Virus use Simplexvirus | 
| Herpes zoster Virus use Herpesvirus 3, Human | 
| Herpestes use Herpestidae | 
| Herpestidae | 
| Herpesviridae | 
| Herpesviridae Infections | 
| Herpesvirus 1 (alpha), Cercopithecine use Herpesvirus 1, Cercopithecine | 
| Herpesvirus 1, Bovine | 
| Herpesvirus 1, Canid | 
| Herpesvirus 1, Caprine use Varicellovirus | 
| Herpesvirus 1, Cercopithecine | 
| Herpesvirus 1, Equid | 
| Herpesvirus 1, Gallid | 
| Herpesvirus 1, Human | 
| Herpesvirus 1, Meleagrid | 
| Herpesvirus 1, Murid use Muromegalovirus | 
| Herpesvirus 1, Ranid | 
| Herpesvirus 1, Saimiriine use Simplexvirus | 
| Herpesvirus 1, Saimirine use Simplexvirus | 
| Herpesvirus 1, Suid | 
| Herpesvirus 16, Cercopithecine use Simplexvirus | 
| Herpesvirus 2, Ateline use Rhadinovirus | 
| Herpesvirus 2, Bovine | 
| Herpesvirus 2, Equid use Rhadinovirus | 
| Herpesvirus 2, Gallid | 
| Herpesvirus 2, Human | 
| Herpesvirus 2, Murid use Muromegalovirus | 
| Herpesvirus 2, Saimiriine | 
| Herpesvirus 2, Saimirine use Herpesvirus 2, Saimiriine | 
| Herpesvirus 3, Equid | 
| Herpesvirus 3, Gallid | 
| Herpesvirus 3, Human | 
| Herpesvirus 4, Bovine | 
| Herpesvirus 4, Equid | 
| Herpesvirus 4, Human | 
| Herpesvirus 4, Murid use Rhadinovirus | 
| Herpesvirus 5, Bovine | 
| Herpesvirus 5, Human use Cytomegalovirus | 
| Herpesvirus 6, Human | 
| Herpesvirus 6A, Human use Herpesvirus 6, Human | 
| Herpesvirus 6B, Human use Herpesvirus 6, Human | 
| Herpesvirus 7, Human | 
| Herpesvirus 8, Human | 
| Herpesvirus B use Herpesvirus 1, Cercopithecine | 
| Herpesvirus Entry Mediator use Receptors, Tumor Necrosis Factor, Member 14 | 
| Herpesvirus Infections use Herpesviridae Infections | 
| Herpesvirus Vaccines | 
| Herpesvirus hominis use Simplexvirus | 
| Herpesvirus papio 2 use Simplexvirus | 
| Herpesvirus platyrhinae use Simplexvirus | 
| Herpesvirus saimiri use Herpesvirus 2, Saimiriine | 
| Herpesvirus simiae use Herpesvirus 1, Cercopithecine | 
| Herpesvirus varicellae use Herpesvirus 3, Human | 
| Herpesvirus, Kaposi Sarcoma-Associated use Herpesvirus 8, Human | 
| Herpetic Acute Necrotizing Encephalitis use Encephalitis, Herpes Simplex | 
| Herpetic Facial Paralysis use Bell Palsy | 
| Herpetomonas use Trypanosomatina | 
| Herpetosiphon use Chloroflexi | 
| Hers Disease use Glycogen Storage Disease Type VI | 
| Hertzian Waves use Radio Waves | 
| Hesperidin | 
| Hetastarch | 
| Heteroantibodies use Antibodies, Heterophile | 
| Heteroantigens use Antigens, Heterophile | 
| Heterocephalus use Mole Rats | 
| Heterochromatin | 
| Heterochromic Cyclitis use Iridocyclitis | 
| Heterocyclic Acids use Acids, Heterocyclic | 
| Heterocyclic Compounds | 
| Heterocyclic Compounds with 4 or More Rings | 
| Heterocyclic Compounds, 1-Ring | 
| Heterocyclic Compounds, 2-Ring | 
| Heterocyclic Compounds, 3-Ring | 
| Heterocyclic Compounds, Bridged-Ring | 
| Heterocyclic Cpds, Bicyclic use Bicyclo Compounds, Heterocyclic | 
| Heterocyclic N-Oxides use Cyclic N-Oxides | 
| Heterocyclic Oxides | 
| Heterocyclic P-Oxides use Cyclic P-Oxides | 
| Heterocyclic S-Oxides use Cyclic S-Oxides | 
| Heteroduplex Analysis | 
| Heteroduplexes, Nucleic Acid use Nucleic Acid Heteroduplexes | 
| Heterogeneous Nuclear RNA use RNA, Heterogeneous Nuclear | 
| Heterogeneous-Nuclear Ribonucleoprotein D | 
| Heterogeneous-Nuclear Ribonucleoprotein Group A-B | 
| Heterogeneous-Nuclear Ribonucleoprotein Group C | 
| Heterogeneous-Nuclear Ribonucleoprotein Group F-H | 
| Heterogeneous-Nuclear Ribonucleoprotein Group M | 
| Heterogeneous-Nuclear Ribonucleoprotein K | 
| Heterogeneous-Nuclear Ribonucleoprotein L | 
| Heterogeneous-Nuclear Ribonucleoprotein U | 
| Heterogeneous-Nuclear Ribonucleoproteins | 
| Heterograft use Transplantation, Heterologous | 
| Heterograft Bioprosthesis use Bioprosthesis | 
| Heterograft Dressings use Biological Dressings | 
| Heterologous Antibodies use Antibodies, Heterophile | 
| Heterologous Antigens use Antigens, Heterophile | 
| Heteronuclear Nuclear Magnetic Resonance use Nuclear Magnetic Resonance, Biomolecular | 
| Heterophile Antibodies use Antibodies, Heterophile | 
| Heterophile Antigens use Antigens, Heterophile | 
| Heterophyes use Heterophyidae | 
| Heterophyidae | 
| Heteropneustes use Catfishes | 
| Heteroptera | 
| Heterosexuality | 
| Heterosis use Hybrid Vigor | 
| Heterotheca use Asteraceae | 
| Heterotopia, Subcortical Band use Classical Lissencephalies and Subcortical Band Heterotopias | 
| Heterotopic Tissue use Choristoma | 
| Heterotrimeric G-Proteins use Heterotrimeric GTP-Binding Proteins | 
| Heterotrimeric GTP-Binding Proteins | 
| Heterotrophic Bacteria | 
| Heterotrophic Processes | 
| Heterovitamin B 1 use Pyrithiamine | 
| Heterozygosity, Loss of use Loss of Heterozygosity | 
| Heterozygote | 
| Heterozygote Detection | 
| Heubner Artery Infarction use Infarction, Anterior Cerebral Artery | 
| Heuchera | 
| Heuchera americana | 
| Hevea | 
| Hevea brasiliensis use Hevea | 
| Hex A use Hexosaminidase A | 
| Hex B use Hexosaminidase B | 
| Hexabrachion use Tenascin | 
| Hexachlorobenzene | 
| Hexachlorocyclohexane use Lindane | 
| Hexachlorophene | 
| Hexadecadrol use Dexamethasone | 
| Hexadecanoates use Palmitates | 
| Hexadecanoic Acid use Palmitic Acid | 
| Hexadienoic Acid use Sorbic Acid | 
| Hexadimethrine | 
| Hexadimethrine Bromide use Hexadimethrine | 
| Hexametapol use Hempa | 
| Hexamethonium | 
| Hexamethonium Compounds | 
| Hexamethyleneimines use Azepines | 
| Hexamethylenetetramine use Methenamine | 
| Hexamethylmelamine use Altretamine | 
| Hexamine use Methenamine | 
| Hexan-2-one use Methyl n-Butyl Ketone | 
| Hexanes | 
| Hexanoates use Caproates | 
| Hexanoic Acids | 
| Hexanols | 
| Hexanones | 
| Hexestrol | 
| Hexetidine | 
| Hexobarbital | 
| Hexobendine | 
| Hexokinase | 
| Hexoprenaline | 
| Hexosamines | 
| Hexosaminidase use Hexosaminidases | 
| Hexosaminidase A | 
| Hexosaminidase A Deficiency Disease use Tay-Sachs Disease | 
| Hexosaminidase A and B Deficiency Disease use Sandhoff Disease | 
| Hexosaminidase B | 
| Hexosaminidases | 
| Hexose Monophosphate Shunt use Pentose Phosphate Pathway | 
| Hexose Transport Proteins use Monosaccharide Transport Proteins | 
| Hexosediphosphatase use Fructose-Bisphosphatase | 
| Hexosediphosphatase Deficiency use Fructose-1,6-Diphosphatase Deficiency | 
| Hexosediphosphates | 
| Hexosephosphate Aminotransferase use Glutamine-Fructose-6-Phosphate Transaminase (Isomerizing) | 
| Hexosephosphate Uridylyltransferase use UDPglucose-Hexose-1-Phosphate Uridylyltransferase | 
| Hexosephosphates | 
| Hexoses | 
| Hexosyltransferases | 
| Hexouronic Acids use Hexuronic Acids | 
| Hexuronic Acids | 
| Hexylresorcinol | 
| Heymann Nephritis use Glomerulonephritis, Membranous | 
| Heymann Nephritis Antigenic Complex | 
| Hiatal Hernia use Hernia, Hiatal | 
| Hib use Haemophilus influenzae type b | 
| Hibernating Gland use Adipose Tissue, Brown | 
| Hibernation | 
| Hibernation, Artificial use Hypothermia, Induced | 
| Hibernation, Myocardial use Myocardial Stunning | 
| Hibernoma use Lipoma | 
| Hibiscus | 
| Hiccup | 
| Hickory Nuts use Carya | 
| Hickory Tree use Carya | 
| Hide Tanning use Leather Industry | 
| Hides and Skins use Leather Industry | 
| Hidradenitis | 
| Hidradenitis Suppurativa | 
| Hidradenoma use Adenoma, Sweat Gland | 
| Hidrocystoma | 
| Hidrosadenitis use Hidradenitis | 
| Hidrotic Ectodermal Dysplasia use Ectodermal Dysplasia | 
| Hierarchy, Social | 
| High Biomass Production Lagoons use Aerobic Lagoons | 
| High Cardiac Output use Cardiac Output, High | 
| High Chairs use Infant Equipment | 
| High Density Lipoprotein Cholesterol use Cholesterol, HDL | 
| High Density Lipoprotein-2 use Lipoproteins, HDL2 | 
| High Density Lipoprotein-3 use Lipoproteins, HDL3 | 
| High Frequency Waves use Radio Waves | 
| High Gravity use Hypergravity | 
| High Mobility Group Nucleosomal Binding Proteins use HMGN Proteins | 
| High Mobility Group Proteins | 
| High Performance Computing use Computing Methodologies | 
| High Potencies | 
| High Pressure | 
| High Pressure Area use Anticyclone | 
| High Pressure Nervous Syndrome use High Pressure Neurological Syndrome | 
| High Pressure Neurological Syndrome | 
| High Rate Activated Sludges | 
| High Rate Anaerobic Digestion | 
| High Rate Lagoons use Aerobic Lagoons | 
| High T4 Syndrome use Euthyroid Sick Syndromes | 
| High Vocal Center | 
| High Water use Flood | 
| High volume measurements use Flow Measurements | 
| High-Cost Technology use Technology, High-Cost | 
| High-Density Lipoproteins use Lipoproteins, HDL | 
| High-Density Lipoproteins, Pre-beta | 
| High-Density Polyethylene use Polyethylene | 
| High-Energy Shock Waves | 
| High-Frequency Chest Wall Oscillation use Chest Wall Oscillation | 
| High-Frequency Jet Ventilation | 
| High-Frequency Oscillation use High-Frequency Ventilation | 
| High-Frequency Positive Pressure Ventilation use High-Frequency Ventilation | 
| High-Frequency Ventilation | 
| High-Molecular-Weight Kininogen use Kininogen, High-Molecular-Weight | 
| High-Rate Sedimentation use Accelerated Sedimentation | 
| High-Risk Pregnancy use Pregnancy, High-Risk | 
| High-Risk Sex use Unsafe Sex | 
| High-Voltage Lines use Electromagnetic Pollution | 
| High-Water use Flood | 
| Highbush Cranberry use Viburnum | 
| Higher Education Institutions | 
| Higher Education Policy | 
| Higher Nervous Activity | 
| Highly Active Antiretroviral Therapy use Antiretroviral Therapy, Highly Active | 
| Hijacking | 
| Hill-Burton Act use Financing, Government | 
| Himatanthus use Apocynaceae | 
| Hindbrain use Rhombencephalon | 
| Hindlimb | 
| Hindlimb Elevation use Hindlimb Suspension | 
| Hindlimb Immobilization use Hindlimb Suspension | 
| Hindlimb Suspension | 
| Hindlimb Unloading use Hindlimb Suspension | 
| Hinduism | 
| Hinge Exons | 
| Hinoki Cypress use Chamaecyparis | 
| Hip | 
| Hip Contracture | 
| Hip Dislocation | 
| Hip Dislocation, Congenital | 
| Hip Dysplasia, Canine | 
| Hip Dysplasia, Congenital use Hip Dislocation, Congenital | 
| Hip Fractures | 
| Hip Injuries | 
| Hip Joint | 
| Hip Prosthesis | 
| Hip Prosthesis Implantation use Arthroplasty, Replacement, Hip | 
| Hip Replacement, Total use Arthroplasty, Replacement, Hip | 
| Hippeastrum use Liliaceae | 
| Hippocalcin | 
| Hippocampal Formation use Hippocampus | 
| Hippocampal Gyrus use Parahippocampal Gyrus | 
| Hippocampal Mossy Fibers use Mossy Fibers, Hippocampal | 
| Hippocampus | 
| Hippocastanaceae | 
| Hippocastanum vulgare use Aesculus hippocastanum | 
| Hippocratea use Hippocrateaceae | 
| Hippocrateaceae | 
| Hippocratic Oath | 
| Hippomane | 
| Hippomane mancinella use Mancinella | 
| Hippomanes | 
| Hippophae | 
| Hippotragines use Antelopes | 
| Hippozaeninum | 
| Hippurates | 
| Hippuricum Acidum | 
| Hirame rhabdovirus use Novirhabdovirus | 
| Hirschsprung Disease | 
| Hirsutism | 
| Hirudin use Hirudins | 
| Hirudin Therapy | 
| Hirudinea use Leeches | 
| Hirudins | 
| Hirudo medicinalis | 
| Hirundinidae use Swallows | 
| Hispanic Americans | 
| Histametizyn use Meclizine | 
| Histaminase use Amine Oxidase (Copper-Containing) | 
| Histamine | 
| Histamine Agents | 
| Histamine Agonists | 
| Histamine Antagonists | 
| Histamine Binding Sites use Receptors, Histamine | 
| Histamine Cephalgia use Cluster Headache | 
| Histamine H1 Agonists use Histamine Agonists | 
| Histamine H1 Antagonists | 
| Histamine H1 Antagonists, Non-Sedating | 
| Histamine H1 Receptor Antagonists use Histamine H1 Antagonists | 
| Histamine H1 Receptor Blockaders use Histamine H1 Antagonists | 
| Histamine H1 Receptors use Receptors, Histamine H1 | 
| Histamine H2 Agonists use Histamine Agonists | 
| Histamine H2 Antagonists | 
| Histamine H2 Receptor Antagonists use Histamine H2 Antagonists | 
| Histamine H2 Receptor Blockaders use Histamine H2 Antagonists | 
| Histamine H2 Receptors use Receptors, Histamine H2 | 
| Histamine H3 Agonists use Histamine Agonists | 
| Histamine H3 Antagonists | 
| Histamine H3 Receptor Antagonists use Histamine H3 Antagonists | 
| Histamine H3 Receptors use Receptors, Histamine H3 | 
| Histamine Liberation use Histamine Release | 
| Histamine Methyltransferase use Histamine N-Methyltransferase | 
| Histamine N-Methyltransferase | 
| Histamine Receptors use Receptors, Histamine | 
| Histamine Release | 
| Histamine-Producing Cell-Stimulating Factor use Granulocyte-Macrophage Colony-Stimulating Factor | 
| Histaminum use Histaminum Muriaticum | 
| Histaminum Muriaticum | 
| Histapyridamine use Pheniramine | 
| Histatins | 
| Histidase use Histidine Ammonia-Lyase | 
| Histidine | 
| Histidine Ammonia-Lyase | 
| Histidine Carboxy-Lyase use Histidine Decarboxylase | 
| Histidine Decarboxylase | 
| Histidine-Specific tRNA use RNA, Transfer, His | 
| Histidine-tRNA Ligase | 
| Histidinol | 
| Histidinol Phosphate Phosphatase use Histidinol-Phosphatase | 
| Histidinol-Phosphatase | 
| Histidol use Histidinol | 
| Histidyl T RNA Synthetase use Histidine-tRNA Ligase | 
| Histiocytes | 
| Histiocytic Disorders, Malignant | 
| Histiocytic Lymphoma, Diffuse use Lymphoma, Large B-Cell, Diffuse | 
| Histiocytic Necrotizing Lymphadenitis | 
| Histiocytic Sarcoma | 
| Histiocytoma | 
| Histiocytoma, Benign Fibrous | 
| Histiocytoma, Cutaneous use Histiocytoma, Benign Fibrous | 
| Histiocytoma, Fibrous use Histiocytoma, Benign Fibrous | 
| Histiocytoma, Malignant Fibrous | 
| Histiocytosis | 
| Histiocytosis X use Histiocytosis, Langerhans-Cell | 
| Histiocytosis, Langerhans-Cell | 
| Histiocytosis, Malignant use Histiocytic Sarcoma | 
| Histiocytosis, Non-Langerhans-Cell | 
| Histiocytosis, Sea-Blue use Sea-Blue Histiocyte Syndrome | 
| Histiocytosis, Sinus | 
| Histocompatibility | 
| Histocompatibility Antigen DNA Probes use DNA Probes, HLA | 
| Histocompatibility Antigens | 
| Histocompatibility Antigens Class I | 
| Histocompatibility Antigens Class II | 
| Histocompatibility Antigens, Minor use Minor Histocompatibility Antigens | 
| Histocompatibility Complex use Major Histocompatibility Complex | 
| Histocompatibility Loci, Minor use Minor Histocompatibility Loci | 
| Histocompatibility Testing | 
| Histocompatibility, Maternal-Fetal | 
| Histocytochemistry | 
| Histocytological Preparation Techniques | 
| Histological Labeling use Staining and Labeling | 
| Histological Techniques | 
| Histology | 
| Histology, Comparative | 
| Histomoniasis use Protozoan Infections | 
| Histone Acetyltransferases | 
| Histone Code | 
| Histone Deacetylases | 
| Histone H1 Kinase, M-Phase-Specific use Maturation-Promoting Factor | 
| Histone Kinase use Protamine Kinase | 
| Histone Kinase p34(cdc2) use CDC2 Protein Kinase | 
| Histone-Lysine N-Methyltransferase | 
| Histones | 
| Histophilus use Pasteurellaceae | 
| Histoplasma | 
| Histoplasma capsulatum use Histoplasma | 
| Histoplasmin | 
| Histoplasmosis | 
| Historical Article | 
| Historical Cohort Studies use Cohort Studies | 
| Historical Geographic Locations | 
| Historiography | 
| History | 
| History of Dentistry | 
| History of Homeopathy | 
| History of Homeopathy, 18th Century | 
| History of Homeopathy, 19th Century | 
| History of Homeopathy, 20th Century | 
| History of Homeopathy, 21st Century | 
| History of Medicine | 
| History of Nursing | 
| History, 15th Century | 
| History, 16th Century | 
| History, 17th Century | 
| History, 18th Century | 
| History, 19th Century | 
| History, 20th Century | 
| History, 21st Century | 
| History, Ancient | 
| History, Early Modern 1451-1600 | 
| History, Medieval | 
| History, Modern use History, Modern 1601- | 
| History, Modern 1601- | 
| Histotropism use Medicamentous Tropism | 
| Histrionic Personality Disorder | 
| Hives use Urticaria | 
| Hly Factors use Hemolysin Factors | 
| Ho YAG Lasers use Lasers, Solid-State | 
| Hoang-nan use Strychnos gaultheriana | 
| Hoarseness | 
| Hobbies | 
| Hock use Tarsus, Animal | 
| Hockey | 
| Hodgkin Disease | 
| Hodgkin Lymphoma use Hodgkin Disease | 
| Hog Cholera use Classical Swine Fever | 
| Hog Cholera Virus use Classical swine fever virus | 
| Hog-Nosed Skunks use Mephitidae | 
| Hogness Box use TATA Box | 
| Hoitzia coccinea | 
| Holarrhena | 
| Holarrhena antidysenterica use Kurchi | 
| Holcus | 
| Holidays | 
| Holistic Health | 
| Holistic Medicine use Holistic Health | 
| Holistic Nursing | 
| Holistic Therapies use Holistic Health | 
| Holland use Netherlands | 
| Holliday Junction Resolvase use Holliday Junction Resolvases | 
| Holliday Junction Resolvases | 
| Holly use Ilex | 
| Holly Oak use Quercus | 
| Holly, Sea use Eryngium | 
| Holmes-Adie Syndrome use Adie Syndrome | 
| Holmium | 
| Holmium Doped Yttrium Aluminum Garnet Lasers use Lasers, Solid-State | 
| Holmium-YAG Lasers use Lasers, Solid-State | 
| Holocarboxylase Synthetase Deficiency | 
| Holocaust | 
| Holoenzymes | 
| Holography | 
| Holoprosencephaly | 
| Holospora use Holosporaceae | 
| Holosporaceae | 
| Holothuria | 
| Holothurin | 
| Holothuroidea use Sea Cucumbers | 
| Holter Monitoring use Electrocardiography, Ambulatory | 
| Holtzman Inkblot Test | 
| Holy See use Vatican City | 
| Holy See (Vatican City State) use Vatican City | 
| Homaridae use Nephropidae | 
| Homarus use Nephropidae | 
| Homarus (Homeopathy) | 
| Homarus gammarus use Homarus (Homeopathy) | 
| Home Accidents use Accidents, Home | 
| Home Blood Glucose Monitoring use Blood Glucose Self-Monitoring | 
| Home Care Agencies | 
| Home Care Aides use Home Health Aides | 
| Home Care Services | 
| Home Care Services, Hospital-Based | 
| Home Care, Non-Professional use Home Nursing | 
| Home Childbirth | 
| Home Health Agencies use Home Care Agencies | 
| Home Health Aides | 
| Home Health Care Agencies use Home Care Agencies | 
| Home Hemodialysis use Hemodialysis, Home | 
| Home Infusion Therapy | 
| Home Nursing | 
| Home Parenteral Nutrition use Parenteral Nutrition, Home | 
| Home Range use Homing Behavior | 
| Home Remedies use Medicine, Traditional | 
| Home Total Parenteral Nutrition use Parenteral Nutrition, Home Total | 
| Home Visit | 
| Homebound Persons | 
| Homeless Children use Homeless Youth | 
| Homeless Persons | 
| Homeless Youth | 
| Homemaker Services | 
| Homemaker-Home Health Aides use Home Health Aides | 
| Homeobox Proteins use Homeodomain Proteins | 
| Homeobox Sequence use Genes, Homeobox | 
| Homeodomain Proteins | 
| Homeodote use Antidotes | 
| Homeopathic Anamnesis | 
| Homeopathic Attenuations use Dynamization | 
| Homeopathic Clinical History use Homeopathic Anamnesis | 
| Homeopathic Clinics | 
| Homeopathic Consultation use Homeopathic Anamnesis | 
| Homeopathic Doctrine use Homeopathy Basis | 
| Homeopathic Dose use Posology | 
| Homeopathic Drug | 
| Homeopathic Drug A | 
| Homeopathic Drug B | 
| Homeopathic Drug C | 
| Homeopathic Drug D | 
| Homeopathic Drug E | 
| Homeopathic Drug F | 
| Homeopathic Drug G | 
| Homeopathic Drug H | 
| Homeopathic Drug I | 
| Homeopathic Drug J | 
| Homeopathic Drug K | 
| Homeopathic Drug L | 
| Homeopathic Drug M | 
| Homeopathic Drug N | 
| Homeopathic Drug O | 
| Homeopathic Drug P | 
| Homeopathic Drug Preparation use Homeopathic Pharmacotechniques | 
| Homeopathic Drug Q | 
| Homeopathic Drug R | 
| Homeopathic Drug S | 
| Homeopathic Drug Selection use Diagnosis, Medicamentous | 
| Homeopathic Drug T | 
| Homeopathic Drug U | 
| Homeopathic Drug V | 
| Homeopathic Drug W | 
| Homeopathic Drug X | 
| Homeopathic Drug Y | 
| Homeopathic Drug Z | 
| Homeopathic Drugs Classification | 
| Homeopathic Drugs Nomenclature | 
| Homeopathic Drugs Origin | 
| Homeopathic Drugs Synonymy | 
| Homeopathic Drugs, New | 
| Homeopathic Interrogatory use Homeopathic Anamnesis | 
| Homeopathic Medicine use Homeopathic Drug | 
| Homeopathic Pharmaceutical Complex | 
| Homeopathic Pharmacies | 
| Homeopathic Pharmacopeias use Pharmacopoeias, Homeopathic | 
| Homeopathic Pharmacopoeias use Pharmacopoeias, Homeopathic | 
| Homeopathic Pharmacotechniques | 
| Homeopathic Pharmacy | 
| Homeopathic Philosophy | 
| Homeopathic Physicians | 
| Homeopathic Physicians, Veterinary use Veterinary Physicians, Homeopathic | 
| Homeopathic Prescription | 
| Homeopathic Remedies use Materia Medica | 
| Homeopathic Semiology | 
| Homeopathic Solutions use Hydroalcoholic Solution | 
| Homeopathic Therapeutics | 
| Homeopathic Vehicles | 
| Homeopathic Veterinary Physicians use Veterinary Physicians, Homeopathic | 
| Homeopaths use Homeopathic Physicians | 
| Homeopathy | 
| Homeopathy Advertising | 
| Homeopathy Basis | 
| Homeopathy Limitations | 
| Homeoproteins use Homeodomain Proteins | 
| Homeostasis | 
| Homeotic Genes use Genes, Homeobox | 
| Homeria use Iridaceae | 
| Homeria collina | 
| Homes for the Aged | 
| Homesickness use Loneliness | 
| Homicide | 
| Homing Behavior | 
| Homing Receptors, T-Cell use Receptors, Lymphocyte Homing | 
| Hominidae | 
| Hominids use Hominidae | 
| Hominins use Hominidae | 
| Homo use Hominidae | 
| Homo sapiens use Humans | 
| Homo-gamma Linolenic Acid use 8,11,14-Eicosatrienoic Acid | 
| Homoarginine | 
| Homocysteine | 
| Homocysteine S-Methyltransferase | 
| Homocystine | 
| Homocystinuria | 
| Homoeopathy use Homeopathy | 
| Homogentisate 1,2-Dioxygenase | 
| Homogentisic Acid | 
| Homograft use Transplantation, Homologous | 
| Homograft Dressings use Biological Dressings | 
| Homograft, Isogeneic use Transplantation, Isogeneic | 
| Homograft, Syngeneic use Transplantation, Isogeneic | 
| Homoisoflavones use Isoflavones | 
| Homologous Restriction Factor 20 use Antigens, CD59 | 
| Homologous Sequences use Sequence Homology | 
| Homologous Sequences, Amino Acid use Sequence Homology, Amino Acid | 
| Homologous Sequences, Nucleic Acid use Sequence Homology, Nucleic Acid | 
| Homologous Wasting Disease use Graft vs Host Disease | 
| Homoprotocatechuic Acid use 3,4-Dihydroxyphenylacetic Acid | 
| Homoserine | 
| Homoserine Deaminase use Cystathionine gamma-Lyase | 
| Homoserine Dehydratase use Cystathionine gamma-Lyase | 
| Homoserine Dehydrogenase | 
| Homoserine O-Succinyltransferase | 
| Homosexuality | 
| Homosexuality, Ego-Dystonic use Homosexuality | 
| Homosexuality, Female | 
| Homosexuality, Male | 
| Homosteroids | 
| Homosynaptic Depression use Long-Term Synaptic Depression | 
| Homovanillic Acid | 
| Homozygote | 
| Honduras | 
| Honey | 
| Honeysuckle use Lonicera | 
| Hong Kong | 
| Hooded Skunks use Mephitidae | 
| Hoof and Claw | 
| Hooks, Surgical use Surgical Instruments | 
| Hookworm Infections | 
| Hookworm, New World use Necator americanus | 
| Hookworm, Old World use Ancylostoma | 
| Hookworms use Ancylostomatoidea | 
| Hopea use Dipterocarpaceae | 
| Hoplopleura use Anoplura | 
| Hops use Humulus | 
| Hordeolum | 
| Hordeum | 
| Horehound use Marrubium | 
| Horehound, Black use Ballota | 
| Horehound, Common use Marrubium | 
| Horehound, Water use Lycopus | 
| Horehound, Woolly use Marrubium | 
| Horizontal Cells, Retinal use Retinal Horizontal Cells | 
| Horizontal Cooperation | 
| Horizontal Filters | 
| Horizontal Gene Transfer use Gene Transfer, Horizontal | 
| Horizontal Nystagmus use Nystagmus, Pathologic | 
| Horizontal Transmission use Disease Transmission, Horizontal | 
| Hormonal Antineoplastic Agents use Antineoplastic Agents, Hormonal | 
| Hormonal Disruptors | 
| Hormone Antagonists | 
| Hormone Receptors, Cell Surface use Receptors, Cell Surface | 
| Hormone Receptors, Cytoplasmic use Receptors, Cytoplasmic and Nuclear | 
| Hormone Receptors, Nuclear use Receptors, Cytoplasmic and Nuclear | 
| Hormone Replacement Therapy | 
| Hormone Replacement Therapy, Post-Menopausal use Estrogen Replacement Therapy | 
| Hormone-Dependent Neoplasms use Neoplasms, Hormone-Dependent | 
| Hormones | 
| Hormones, Ectopic | 
| Hormones, Hormone Substitutes, and Hormone Antagonists | 
| Hormones, Invertebrate use Invertebrate Hormones | 
| Hormones, Peptide use Peptide Hormones | 
| Hormones, Substitutes, Antagonists use Hormones, Hormone Substitutes, and Hormone Antagonists | 
| Horn Fly use Muscidae | 
| Hornbeam use Betulaceae | 
| Hornbeam, Hop use Betulaceae | 
| Horned Lark use Songbirds | 
| Horner Syndrome | 
| Horner's Syndrome use Horner Syndrome | 
| Hornets use Wasps | 
| Horns | 
| Horse Chestnut use Aesculus | 
| Horse Diseases | 
| Horsebean use Vicia faba | 
| Horsenettle use Solanum | 
| Horseradish use Armoracia | 
| Horseradish Peroxidase | 
| Horseradish, Japanese use Wasabia | 
| Horses | 
| Horseshoe Bats use Chiroptera | 
| Horseshoe Crabs | 
| Horsetail use Equisetum | 
| Horseweed use Conyza | 
| Horton Disease use Giant Cell Arteritis | 
| Horton Giant Cell Arteritis use Giant Cell Arteritis | 
| Horton Syndrome use Cluster Headache | 
| Hortonia use Monimiaceae | 
| Hospice Care | 
| Hospice Programs use Hospice Care | 
| Hospices | 
| Hospital Administration | 
| Hospital Administrators | 
| Hospital Admission Tests use Diagnostic Tests, Routine | 
| Hospital Admissions Office use Admitting Department, Hospital | 
| Hospital Admitting Department use Admitting Department, Hospital | 
| Hospital Ancillary Services use Ancillary Services, Hospital | 
| Hospital Anesthesia Department use Anesthesia Department, Hospital | 
| Hospital Anesthesia-Resuscitation Department use Anesthesia Department, Hospital | 
| Hospital Auxiliaries | 
| Hospital Bed Capacity | 
| Hospital Bed Capacity, 100 to 299 | 
| Hospital Bed Capacity, 300 to 499 | 
| Hospital Bed Capacity, 500 and over | 
| Hospital Bed Capacity, under 100 | 
| Hospital Bed Density use Hospital Bed Capacity | 
| Hospital Cardiology Service use Cardiology Service, Hospital | 
| Hospital Care | 
| Hospital Central Supplies use Central Supply, Hospital | 
| Hospital Central Supply use Central Supply, Hospital | 
| Hospital Chaplaincy Service use Chaplaincy Service, Hospital | 
| Hospital Charges | 
| Hospital Chief Executive Officers use Chief Executive Officers, Hospital | 
| Hospital Closure use Health Facility Closure | 
| Hospital Closures use Health Facility Closure | 
| Hospital Communication Systems | 
| Hospital Costs | 
| Hospital Dental Service use Dental Service, Hospital | 
| Hospital Dental Staff use Dental Staff, Hospital | 
| Hospital Departments | 
| Hospital Design and Construction | 
| Hospital Distribution Systems | 
| Hospital Diversification use Hospital Restructuring | 
| Hospital Drug Distribution Systems use Medication Systems, Hospital | 
| Hospital Economics use Economics, Hospital | 
| Hospital Education Department use Education Department, Hospital | 
| Hospital Emergency Service use Emergency Service, Hospital | 
| Hospital Engineering use Maintenance and Engineering, Hospital | 
| Hospital Equipment and Supplies use Equipment and Supplies, Hospital | 
| Hospital Financial Management use Financial Management, Hospital | 
| Hospital Financial Managements use Financial Management, Hospital | 
| Hospital Food Service use Food Service, Hospital | 
| Hospital Gift Shops use Hospital Shops | 
| Hospital Groundskeeping use Maintenance and Engineering, Hospital | 
| Hospital Group Purchasing use Group Purchasing | 
| Hospital Hemodialysis Units use Hemodialysis Units, Hospital | 
| Hospital Housekeeping use Housekeeping, Hospital | 
| Hospital Incident Reporting use Risk Management | 
| Hospital Incinerators | 
| Hospital Infection Control Program | 
| Hospital Infection Control Services use Infection Control Services, Hospital | 
| Hospital Infections use Cross Infection | 
| Hospital Information Systems | 
| Hospital Insurance Program, Medicare use Medicare Part A | 
| Hospital Inventories use Inventories, Hospital | 
| Hospital Laboratories use Laboratories, Hospital | 
| Hospital Laundry Service use Laundry Service, Hospital | 
| Hospital Libraries use Libraries, Hospital | 
| Hospital Licensure use Licensure, Hospital | 
| Hospital Maintenance use Maintenance and Engineering, Hospital | 
| Hospital Materials Management use Materials Management, Hospital | 
| Hospital Medical Records Department use Medical Records Department, Hospital | 
| Hospital Medical Staff use Medical Staff, Hospital | 
| Hospital Medication System use Medication Systems, Hospital | 
| Hospital Medication Systems use Medication Systems, Hospital | 
| Hospital Merger use Health Facility Merger | 
| Hospital Mortality | 
| Hospital Moving use Health Facility Moving | 
| Hospital Nuclear Medicine Department use Nuclear Medicine Department, Hospital | 
| Hospital Nurseries use Nurseries, Hospital | 
| Hospital Nursing Service use Nursing Service, Hospital | 
| Hospital Nursing Staff use Nursing Staff, Hospital | 
| Hospital Obstetrics and Gynecology Department use Obstetrics and Gynecology Department, Hospital | 
| Hospital Occupational Therapy Department use Occupational Therapy Department, Hospital | 
| Hospital Organization and Administration use Hospital Administration | 
| Hospital Outpatient Clinics use Outpatient Clinics, Hospital | 
| Hospital Pathology Department use Pathology Department, Hospital | 
| Hospital Personnel use Personnel, Hospital | 
| Hospital Personnel Administration use Personnel Administration, Hospital | 
| Hospital Pharmacy Service use Pharmacy Service, Hospital | 
| Hospital Physical Therapy Department use Physical Therapy Department, Hospital | 
| Hospital Planning | 
| Hospital Psychiatric Department use Psychiatric Department, Hospital | 
| Hospital Purchasing use Purchasing, Hospital | 
| Hospital Purchasings use Purchasing, Hospital | 
| Hospital Radiology Department use Radiology Department, Hospital | 
| Hospital Readmission use Patient Readmission | 
| Hospital Records | 
| Hospital Recovery Room use Recovery Room | 
| Hospital Recovery Rooms use Recovery Room | 
| Hospital Referral use Referral and Consultation | 
| Hospital Renovation use Hospital Design and Construction | 
| Hospital Renovations use Hospital Design and Construction | 
| Hospital Reorganization use Hospital Restructuring | 
| Hospital Respiratory Therapy Department use Respiratory Therapy Department, Hospital | 
| Hospital Restructuring | 
| Hospital Sanitation | 
| Hospital Services | 
| Hospital Services, Centralized use Centralized Hospital Services | 
| Hospital Shared Services | 
| Hospital Shops | 
| Hospital Size use Health Facility Size | 
| Hospital Social Work Department use Social Work Department, Hospital | 
| Hospital Statistics | 
| Hospital Stay use Hospitalization | 
| Hospital Surgery Department use Surgery Department, Hospital | 
| Hospital Units | 
| Hospital Urology Department use Urology Department, Hospital | 
| Hospital Volunteers | 
| Hospital-Addiction Syndrome use Munchausen Syndrome | 
| Hospital-Based Home Care use Home Care Services, Hospital-Based | 
| Hospital-Patient Relations | 
| Hospital-Physician Joint Ventures | 
| Hospital-Physician Relations | 
| Hospitalists | 
| Hospitalization | 
| Hospitalization Insurance use Insurance, Hospitalization | 
| Hospitalization, Partial use Day Care | 
| Hospitalized Child use Child, Hospitalized | 
| Hospitals | 
| Hospitals, Air Force use Hospitals, Military | 
| Hospitals, Animal | 
| Hospitals, Army use Hospitals, Military | 
| Hospitals, Branch use Hospitals, Satellite | 
| Hospitals, Cancer use Cancer Care Facilities | 
| Hospitals, Chronic Disease | 
| Hospitals, City use Hospitals, Urban | 
| Hospitals, City, Non-Public-Owned use Hospitals, Urban | 
| Hospitals, City, Public-Owned use Hospitals, Municipal | 
| Hospitals, Community | 
| Hospitals, Convalescent | 
| Hospitals, County | 
| Hospitals, Day | 
| Hospitals, District | 
| Hospitals, Federal | 
| Hospitals, General | 
| Hospitals, Group Practice | 
| Hospitals, Maternity | 
| Hospitals, Metropolitan use Hospitals, Urban | 
| Hospitals, Military | 
| Hospitals, Municipal | 
| Hospitals, Navy use Hospitals, Military | 
| Hospitals, Osteopathic | 
| Hospitals, Packaged | 
| Hospitals, Pediatric | 
| Hospitals, Private | 
| Hospitals, Private, Investor-Owned use Hospitals, Proprietary | 
| Hospitals, Private, Not-for-Profit use Hospitals, Voluntary | 
| Hospitals, Private, for-Profit use Hospitals, Proprietary | 
| Hospitals, Proprietary | 
| Hospitals, Psychiatric | 
| Hospitals, Public | 
| Hospitals, Religious | 
| Hospitals, Rural | 
| Hospitals, Satellite | 
| Hospitals, Special | 
| Hospitals, State | 
| Hospitals, Teaching | 
| Hospitals, University | 
| Hospitals, Urban | 
| Hospitals, Veterans | 
| Hospitals, Veterinary use Hospitals, Animal | 
| Hospitals, Voluntary | 
| Host Cell Factor C1 | 
| Host Factor 1 Protein | 
| Host vs Graft Reaction | 
| Host-Parasite Interactions | 
| Host-Parasite Relations use Host-Parasite Interactions | 
| Host-Pathogen Interactions | 
| Host-Pathogen Relations use Host-Pathogen Interactions | 
| Hosta | 
| Hostages use Prisoners | 
| Hostility | 
| Hot Flashes | 
| Hot Front | 
| Hot Springs | 
| Hotel Sanitation | 
| Hotels use Hotel Sanitation | 
| Hotlines | 
| Hour Variations | 
| House Calls | 
| House Connections use House Installations | 
| House Dust use Dust | 
| House Dust Mite, American use Dermatophagoides farinae | 
| House Dust Mites use Pyroglyphidae | 
| House Installations | 
| House Staff use Internship and Residency | 
| Houseflies | 
| Household Articles | 
| Household Bleaches use Bleaches | 
| Household Equipment use Household Articles | 
| Household Products | 
| Household Supplies use Household Products | 
| Housekeeping | 
| Housekeeping, Hospital | 
| Housing | 
| Housing Flow Measurement use Water Consumption Measurement | 
| Housing Hygiene use Housing Sanitation | 
| Housing Incinerators | 
| Housing Sanitation | 
| Housing for the Elderly | 
| Housing, Animal | 
| Houttuynia | 
| Howell-Jolly Bodies use Erythrocyte Inclusions | 
| Hsc70 Protein use HSC70 Heat-Shock Proteins | 
| Hu Paraneoplastic Encephalomyelitis Antigens | 
| Hu-Man-Teng use Gelsemium | 
| Huckleberry Plant | 
| Human Activities | 
| Human Artificial Chromosomes use Chromosomes, Artificial, Human | 
| Human Astrovirus use Mamastrovirus | 
| Human B-Lymphotropic Virus use Herpesvirus 6, Human | 
| Human Body | 
| Human Characteristics | 
| Human Chorionic Gonadotropin Receptors use Receptors, LH | 
| Human Chorionic Gonadotropin, alpha Subunit use Glycoprotein Hormones, alpha Subunit | 
| Human Chorionic Gonadotropin, beta Subunit use Chorionic Gonadotropin, beta Subunit, Human | 
| Human Class II Antigens use HLA-D Antigens | 
| Human Cloning use Cloning, Organism | 
| Human Development | 
| Human Ecology | 
| Human Embryo Research use Embryo Research | 
| Human Endogenous Retroviruses use Endogenous Retroviruses | 
| Human Engineering | 
| Human Enterovirus 71 use Enterovirus A, Human | 
| Human Environment use Human Ecology | 
| Human Experimentation | 
| Human Experimentation, Nontherapeutic use Nontherapeutic Human Experimentation | 
| Human Experimentation, Therapeutic use Therapeutic Human Experimentation | 
| Human Figure use Human Body | 
| Human Flu use Influenza, Human | 
| Human Foamy Virus use Simian foamy virus | 
| Human Forefoot use Forefoot, Human | 
| Human Genome use Genome, Human | 
| Human Genome Diversity Project use Human Genome Project | 
| Human Genome Project | 
| Human Glandular Kallikrein 1 use Tissue Kallikreins | 
| Human Glandular Kallikrein 2 use Tissue Kallikreins | 
| Human Glandular Kallikreins use Tissue Kallikreins | 
| Human Growth Hormone | 
| Human Herpesvirus 2 use Herpesvirus 2, Human | 
| Human Herpesvirus 4 use Herpesvirus 4, Human | 
| Human Herpesvirus 5 use Cytomegalovirus | 
| Human Identification use Forensic Anthropology | 
| Human Immunodeficiency Virus Long Terminal Repeat use HIV Long Terminal Repeat | 
| Human Immunodeficiency Virus Proteins | 
| Human Immunodeficiency Virus-Associated Nephropathy use AIDS-Associated Nephropathy | 
| Human Immunodeficiency Viruses use HIV | 
| Human Influenza use Influenza, Human | 
| Human Leukocyte Antigen DNA Probes use DNA Probes, HLA | 
| Human Leukocyte Antigens use HLA Antigens | 
| Human Metapneumovirus use Metapneumovirus | 
| Human Microbiome use Microbiome | 
| Human Milk Substitutes use Breast-Milk Substitutes | 
| Human Nature use Human Characteristics | 
| Human Papilloma Virus DNA Probes use DNA Probes, HPV | 
| Human Papillomavirus Vaccines use Papillomavirus Vaccines | 
| Human Parathyroid Hormone (1-34) use Teriparatide | 
| Human Parvovirus B19 use Parvovirus B19, Human | 
| Human Placental Lactogen use Placental Lactogen | 
| Human Platelet Antigens use Antigens, Human Platelet | 
| Human Polyomavirus BK use BK Virus | 
| Human Polyomavirus JC use JC Virus | 
| Human Resources | 
| Human Resources Development use Staff Development | 
| Human Resources Formation | 
| Human Resources in Disasters | 
| Human Resources in Science and Technology Indicators | 
| Human Rights | 
| Human Rights Abuses | 
| Human Settlements | 
| Human T-Cell Leukemia Virus Antibodies use Deltaretrovirus Antibodies | 
| Human T-Cell Leukemia Virus Antigens use Deltaretrovirus Antigens | 
| Human T-Cell Leukemia Virus I use Human T-lymphotropic virus 1 | 
| Human T-Cell Leukemia Virus I Antibodies use HTLV-I Antibodies | 
| Human T-Cell Leukemia Virus I Antigens use HTLV-I Antigens | 
| Human T-Cell Leukemia Virus II use Human T-lymphotropic virus 2 | 
| Human T-Cell Leukemia Virus II Antibodies use HTLV-II Antibodies | 
| Human T-Cell Leukemia Virus II Antigens use HTLV-II Antigens | 
| Human T-Cell Leukemia Viruses use Deltaretrovirus | 
| Human T-Cell Leukemia-Lymphoma Viruses use Deltaretrovirus | 
| Human T-Cell Lymphotropic Virus Type III use HIV | 
| Human T-Lymphotropic Virus II use Human T-lymphotropic virus 2 | 
| Human T-Lymphotropic Virus II Antibodies use HTLV-II Antibodies | 
| Human T-Lymphotropic Virus II Antigens use HTLV-II Antigens | 
| Human T-Lymphotropic Virus Type III use HIV | 
| Human T-Lymphotropic Virus Type IV use HIV-2 | 
| Human T-lymphotropic virus 1 | 
| Human T-lymphotropic virus 2 | 
| Human coronavirus 229E use Coronavirus 229E, Human | 
| Human coronavirus OC43 use Coronavirus OC43, Human | 
| Human coxsackievirus A24 use Enterovirus C, Human | 
| Human coxsackievirus A9 use Enterovirus B, Human | 
| Human echovirus 6 use Echovirus 6, Human | 
| Human echovirus 9 use Echovirus 9 | 
| Human enterovirus 70 use Enterovirus D, Human | 
| Human enterovirus A use Enterovirus A, Human | 
| Human enterovirus B use Enterovirus B, Human | 
| Human enterovirus C use Enterovirus C, Human | 
| Human enterovirus D use Enterovirus D, Human | 
| Human hepatitis a virus use Hepatitis A Virus, Human | 
| Human herpesvirus 1 use Herpesvirus 1, Human | 
| Human herpesvirus 3 use Herpesvirus 3, Human | 
| Human herpesvirus 6 use Herpesvirus 6, Human | 
| Human herpesvirus 7 use Herpesvirus 7, Human | 
| Human herpesvirus 8 use Herpesvirus 8, Human | 
| Human immunodeficiency virus 1 use HIV-1 | 
| Human immunodeficiency virus 2 use HIV-2 | 
| Human papillomavirus 11 | 
| Human papillomavirus 16 | 
| Human papillomavirus 18 | 
| Human papillomavirus 6 | 
| Human parainfluenza virus 1 use Parainfluenza Virus 1, Human | 
| Human parainfluenza virus 2 use Parainfluenza Virus 2, Human | 
| Human parainfluenza virus 3 use Parainfluenza Virus 3, Human | 
| Human parainfluenza virus 4 use Parainfluenza Virus 4, Human | 
| Human parechovirus use Parechovirus | 
| Human poliovirus 1 use Poliovirus | 
| Human poliovirus 2 use Poliovirus | 
| Human poliovirus 3 use Poliovirus | 
| Human respiratory syncytial virus use Respiratory Syncytial Virus, Human | 
| Human torovirus use Torovirus | 
| Human-Pet Bonding use Bonding, Human-Pet | 
| Humanism | 
| Humanitarianism use Altruism | 
| Humanities | 
| Humanization of Assistance | 
| Humanization of Delivery use Humanizing Delivery | 
| Humanization of Hospital Care use Humanization of Assistance | 
| Humanization of Services use Humanization of Assistance | 
| Humanized Delivery use Humanizing Delivery | 
| Humanizing Childbirth use Humanizing Delivery | 
| Humanizing Delivery | 
| Humans | 
| Humboldt Current use Cold Currents | 
| Humea elegans | 
| Humectants use Wetting Agents | 
| Humeral Fractures | 
| Humeral Fractures, Proximal use Shoulder Fractures | 
| Humerus | 
| Humic Acids use Humic Substances | 
| Humic Acids (Environmental Health) | 
| Humic Compounds (Environmental Health) use Humic Acids (Environmental Health) | 
| Humic Substances | 
| Humic Substances (Environmental Health) use Humic Acids (Environmental Health) | 
| Humidity | 
| Humor | 
| Humor as Topic use Wit and Humor as Topic | 
| Humoralism | 
| Humpback Dolphins use Dolphins | 
| Humpback Whale | 
| Humulus | 
| Humulus lupulus use Lupulus humulus | 
| Humus | 
| Hungary | 
| Hunger | 
| Hunt | 
| Hunter Corrective Factor use Iduronate Sulfatase | 
| Hunter's Syndrome use Mucopolysaccharidosis II | 
| Huntington Chorea use Huntington Disease | 
| Huntington Disease | 
| Huperzia | 
| Hura brasiliensis | 
| Hura crepitans | 
| Hurler's Syndrome use Mucopolysaccharidosis I | 
| Hurler-Scheie Syndrome use Mucopolysaccharidosis I | 
| Hurricane Warning | 
| Hurricane Zone, Cyclogenetic use Cyclogenetic Hurricane Zone | 
| Hurricanes use Natural Disasters | 
| Hurricanes (Disasters) | 
| Hurricanes (Environmental Health) use Hurricanes (Disasters) | 
| Hurst Disease use Leukoencephalitis, Acute Hemorrhagic | 
| Hurthle Cell Tumor use Adenoma, Oxyphilic | 
| Hurthle Cells use Oxyphil Cells | 
| Husbandry use Livestock Industry | 
| Husbands use Spouses | 
| Hutchinson's Melanotic Freckle | 
| Hutchinson's Teeth use Syphilis, Congenital | 
| Hutchinson-Gilford Syndrome use Progeria | 
| Hyacinth use Hyacinthus | 
| Hyacinth, Water use Eichhornia | 
| Hyacinthaceae use Liliaceae | 
| Hyacinthus | 
| Hyaenidae | 
| Hyalin | 
| Hyalin Substance use Hyalin | 
| Hyaline Cartilage | 
| Hyaline Membrane Disease | 
| Hyalinosis, Segmental Glomerular use Glomerulosclerosis, Focal Segmental | 
| Hyaluronan Receptors use Antigens, CD44 | 
| Hyaluronan-Binding Protein use Antigens, CD44 | 
| Hyaluronic Acid | 
| Hyaluronidase use Hyaluronoglucosaminidase | 
| Hyaluronoglucosaminidase | 
| Hybanthus use Violaceae | 
| Hybrid Cells | 
| Hybrid Vigor | 
| Hybridization in Situ use In Situ Hybridization | 
| Hybridization in Situ, Fluorescence use In Situ Hybridization, Fluorescence | 
| Hybridization, Genetic | 
| Hybridoma Growth Factor use Interleukin-6 | 
| Hybridomas | 
| Hycanthone | 
| Hydantoins | 
| Hydatid Cyst use Echinococcosis | 
| Hydatid Cyst, Hepatic use Echinococcosis, Hepatic | 
| Hydatid Cyst, Pulmonary use Echinococcosis, Pulmonary | 
| Hydatidiform Mole | 
| Hydatidiform Mole, Invasive | 
| Hydatidosis use Echinococcosis | 
| Hydatidosis, Hepatic use Echinococcosis, Hepatic | 
| Hydatidosis, Pulmonary use Echinococcosis, Pulmonary | 
| Hydra | 
| Hydralazine | 
| Hydrallazin use Hydralazine | 
| Hydramnios use Polyhydramnios | 
| Hydranencephaly | 
| Hydrangea | 
| Hydrangea arborescens | 
| Hydrangeaceae | 
| Hydrangin use Umbelliferones | 
| Hydrants | 
| Hydrargyri Sulphidum Rubrum use Cinnabaris | 
| Hydrargyrum stibiato-sulphuratum use Aethiops antimonialis | 
| Hydrarthrosis | 
| Hydrases use Hydro-Lyases | 
| Hydrastinum Muriaticum | 
| Hydrastinum Sulphuricum | 
| Hydrastis | 
| Hydrastis canadensis | 
| Hydrated Alumina use Aluminum Hydroxide | 
| Hydrating Agents use Wetting Agents | 
| Hydraulic Flocculators | 
| Hydraulic Flows use Water Flow | 
| Hydraulic Jump | 
| Hydraulic Measurements | 
| Hydraulic Models | 
| Hydraulic Power | 
| Hydraulic Ram | 
| Hydraulic Resources use Water Resources | 
| Hydraulic Seal Latrines use Latrines (Environmental Health) | 
| Hydraulic Structures | 
| Hydraulics | 
| Hydrazines | 
| Hydrazones | 
| Hydric Consumption use Water Consumption (Environmental Health) | 
| Hydric Erosion | 
| Hydrilla use Hydrocharitaceae | 
| Hydro-Lyases | 
| Hydroa Vacciniforme | 
| Hydroalcoholic Solution | 
| Hydrobiology use Aquatic Biology | 
| Hydrobromic Acid | 
| Hydrobromicum Acidum | 
| Hydrocarbon Transportation | 
| Hydrocarbons | 
| Hydrocarbons, Acyclic | 
| Hydrocarbons, Alicyclic | 
| Hydrocarbons, Aromatic | 
| Hydrocarbons, Brominated | 
| Hydrocarbons, Chlorinated | 
| Hydrocarbons, Cyclic | 
| Hydrocarbons, Fluorinated | 
| Hydrocarbons, Halogenated | 
| Hydrocarbons, Iodinated | 
| Hydrocarbons, Polycyclic use Polycyclic Compounds | 
| Hydrocephalus | 
| Hydrocephalus, Normal Pressure | 
| Hydrochaeris use Rodentia | 
| Hydrocharitaceae | 
| Hydrochloric Acid | 
| Hydrochloric Acid, Gastric use Gastric Acid | 
| Hydrochlorothiazide | 
| Hydrocodeinonebitartrate use Hydrocodone | 
| Hydrocodone | 
| Hydrocolpos | 
| Hydrocon use Hydrocodone | 
| Hydrocortisone | 
| Hydrocotyle use Centella | 
| Hydrocotyle asiatica use Centella | 
| Hydrocotyle asiatica (Homeopathy) | 
| Hydrocyanic Acid use Hydrogen Cyanide | 
| Hydrocyanicum Acidum | 
| Hydrodynamic Models | 
| Hydrodynamics | 
| Hydroelectric Energy | 
| Hydroelectric Power Plant use Hydroelectric Power Plants (Environmental Health) | 
| Hydroelectric Power Plants use Power Plants | 
| Hydroelectric Power Plants (Environmental Health) | 
| Hydroelectric Resources use Hydroelectric Energy | 
| Hydroflumethiazide | 
| Hydrofluoric Acid | 
| Hydrogel | 
| Hydrogels | 
| Hydrogen | 
| Hydrogen Bombs use Nuclear Weapons | 
| Hydrogen Bonding | 
| Hydrogen Carbonates use Bicarbonates | 
| Hydrogen Chloride use Hydrochloric Acid | 
| Hydrogen Cyanide | 
| Hydrogen Fluoride use Hydrofluoric Acid | 
| Hydrogen Ions use Protons | 
| Hydrogen Peroxide | 
| Hydrogen Sulfide | 
| Hydrogen, Potassium ATPase use H(+)-K(+)-Exchanging ATPase | 
| Hydrogen, Potassium, Adenosinetriphosphatase use H(+)-K(+)-Exchanging ATPase | 
| Hydrogen-Ion Concentration | 
| Hydrogenase | 
| Hydrogenation | 
| Hydrogenophaga use Comamonadaceae | 
| Hydrogenophilaceae | 
| Hydrogensulfite Reductase | 
| Hydrogeological MAP | 
| Hydrogeology | 
| Hydrogram use Hydrograms | 
| Hydrograms | 
| Hydrograph | 
| Hydrographic Basins | 
| Hydrography | 
| Hydrolases | 
| Hydrolases, N-Glycosyl use N-Glycosyl Hydrolases | 
| Hydrologic Disaster | 
| Hydrologic Region | 
| Hydrological Cycle | 
| Hydrological Data use Hydrological Statistics | 
| Hydrological Forecast | 
| Hydrological Measurement use Hydrological Statistics | 
| Hydrological Models | 
| Hydrological Resources use Water Resources | 
| Hydrological Stations | 
| Hydrological Statistics | 
| Hydrological Warning | 
| Hydrology | 
| Hydrolysis | 
| Hydrolyzable Tannins | 
| Hydrolyzed Vegetal Protein | 
| Hydromechanics use Hydraulics | 
| Hydrometeorology | 
| Hydrometric Station | 
| Hydromorphon use Hydromorphone | 
| Hydromorphone | 
| Hydronephrosis | 
| Hydrophid Venoms | 
| Hydrophidae | 
| Hydrophiinae use Hydrophidae | 
| Hydrophis cyanocinctus | 
| Hydrophobia use Rabies | 
| Hydrophobic Surfaces use Hydrophobicity | 
| Hydrophobicity | 
| Hydrophobinum use Lyssinum | 
| Hydrophthalmos | 
| Hydrophyllaceae | 
| Hydrophyllum virginicum | 
| Hydropiper use Polygonum hydropiperoides | 
| Hydropneumatic Systems use Pressure Systems | 
| Hydropneumothorax | 
| Hydroponics | 
| Hydrops use Edema | 
| Hydrops Fetalis | 
| Hydroquinones | 
| Hydrosme rivieri use Amorphophallus rivieri | 
| Hydrostatic Pressure | 
| Hydrostatics | 
| Hydrosyringomyelia use Syringomyelia | 
| Hydrotherapy | 
| Hydrothorax | 
| Hydroxamic Acids | 
| Hydroxides | 
| Hydroxocobalamin | 
| Hydroxy Acids | 
| Hydroxyacetanilide use Acetaminophen | 
| Hydroxyacetylaminofluorene | 
| Hydroxyampicillin use Amoxicillin | 
| Hydroxyandrostanes use Androstanols | 
| Hydroxyandrostenes use Androstenols | 
| Hydroxyanilines use Aminophenols | 
| Hydroxyapatite use Durapatite | 
| Hydroxyapatites | 
| Hydroxybenzoic Acids | 
| Hydroxybrazilin use Hematoxylin | 
| Hydroxybutyrate Dehydrogenase | 
| Hydroxybutyrates | 
| Hydroxycarbamid use Hydroxyurea | 
| Hydroxychlorobenzenes use Chlorophenols | 
| Hydroxychlorochin use Hydroxychloroquine | 
| Hydroxychloroquine | 
| Hydroxycholecalciferols | 
| Hydroxycholestanes use Cholestanols | 
| Hydroxycholesterols | 
| Hydroxycinnamic Acids use Coumaric Acids | 
| Hydroxycobalamin use Hydroxocobalamin | 
| Hydroxycorticosteroids | 
| Hydroxydiazepam use Temazepam | 
| Hydroxydopamines | 
| Hydroxyeicosatetraenoic Acids | 
| Hydroxyestrones | 
| Hydroxyethyl Starch use Hetastarch | 
| Hydroxyethylrutoside | 
| Hydroxyethylsulfonic Acid use Isethionic Acid | 
| Hydroxyfluorenylacetamide use Hydroxyacetylaminofluorene | 
| Hydroxyimino Compounds use Oximes | 
| Hydroxyindole O-Methyltransferase use Acetylserotonin O-Methyltransferase | 
| Hydroxyindoleacetic Acid | 
| Hydroxyl Radical | 
| Hydroxylamine | 
| Hydroxylamines | 
| Hydroxylapatite use Durapatite | 
| Hydroxylases use Mixed Function Oxygenases | 
| Hydroxylation | 
| Hydroxylysine | 
| Hydroxymercuribenzoates | 
| Hydroxymethacrylate Gel use Polyhydroxyethyl Methacrylate | 
| Hydroxymetholone use Oxymetholone | 
| Hydroxymethoxyphenethyl Alcohol use 3-Methoxy-4-hydroxyphenylethanol | 
| Hydroxymethoxyphenylglycol use Methoxyhydroxyphenylglycol | 
| Hydroxymethyl and Formyl Transferases | 
| Hydroxymethylbilane Synthase | 
| Hydroxymethylglutaryl CoA Reductases | 
| Hydroxymethylglutaryl-CoA Reductase Inhibitors | 
| Hydroxymethylglutaryl-CoA Reductases, NAD-Dependent | 
| Hydroxymethylglutaryl-CoA Synthase | 
| Hydroxymethylglutaryl-CoA-Reductase (NADP) use Hydroxymethylglutaryl-CoA-Reductases, NADP-dependent | 
| Hydroxymethylglutaryl-CoA-Reductases, NADP-dependent | 
| Hydroxymycin use Paromomycin | 
| Hydroxynaphthalenes use Naphthols | 
| Hydroxyphenylazouracil | 
| Hydroxyphenylbutazone use Oxyphenbutazone | 
| Hydroxyphenylisopropylamine use p-Hydroxyamphetamine | 
| Hydroxyprogesterones | 
| Hydroxyproline | 
| Hydroxypropiophenone | 
| Hydroxyprostaglandin Dehydrogenases | 
| Hydroxypyruvate Reductase | 
| Hydroxyquinolines | 
| Hydroxysteroid Dehydrogenases | 
| Hydroxysteroids | 
| Hydroxytestosterones | 
| Hydroxytetracycline use Oxytetracycline | 
| Hydroxythiamine use Oxythiamine | 
| Hydroxytryptophol | 
| Hydroxytyramine use Dopamine | 
| Hydroxyurea | 
| Hydroxyvitamins D use Hydroxycholecalciferols | 
| Hydroxyzine | 
| Hydrozoa | 
| Hyenas use Hyaenidae | 
| Hygiene | 
| Hygroma use Lymphangioma, Cystic | 
| Hygroma, Cystic use Lymphangioma, Cystic | 
| Hygroma, Subdural use Subdural Effusion | 
| Hygromycin B | 
| Hygroscopicity use Wettability | 
| Hylobates | 
| Hylobatidae | 
| Hymecromone | 
| Hymen | 
| Hymenaea | 
| Hymenolepiasis | 
| Hymenolepis | 
| Hymenolepis diminuta | 
| Hymenolepis nana | 
| Hymenoptera | 
| Hymenostomatida | 
| Hyoid Bone | 
| Hyoscinbutylbromide use Butylscopolammonium Bromide | 
| Hyoscine use Scopolamine | 
| Hyoscyamine use Atropine | 
| Hyoscyaminum Bromatum | 
| Hyoscyamus | 
| Hyoscyamus niger | 
| Hyper-IgM Immunodeficiency Syndrome | 
| Hyper-IgM Immunodeficiency Syndrome, Type 1 | 
| Hyper-IgM Immunodeficiency Syndrome, Type 2 use Hyper-IgM Immunodeficiency Syndrome | 
| Hyper-IgM Immunodeficiency Syndrome, Type 3 use Hyper-IgM Immunodeficiency Syndrome | 
| Hyper-IgM Immunodeficiency Syndrome, Type 5 use Hyper-IgM Immunodeficiency Syndrome | 
| Hyperactivity, Motor use Hyperkinesis | 
| Hyperacusis | 
| Hyperadrenocorticism use Adrenocortical Hyperfunction | 
| Hyperaldosteronism | 
| Hyperalgesia | 
| Hyperalgesia, Tactile use Hyperalgesia | 
| Hyperalgesia, Thermal use Hyperalgesia | 
| Hyperalimentation, Parenteral use Parenteral Nutrition, Total | 
| Hyperammonemia | 
| Hyperamylasemia | 
| Hyperandrogenism | 
| Hyperargininemia | 
| Hyperbaric Oxygenation | 
| Hyperbetalipoproteinemia use Hyperlipoproteinemia Type II | 
| Hyperbilirubinemia | 
| Hyperbilirubinemia, Hereditary | 
| Hyperbilirubinemia, Neonatal | 
| Hyperbilirubinemic Encephalopathy use Kernicterus | 
| Hypercalcemia | 
| Hypercalciuria | 
| Hypercapnia | 
| Hypercementosis | 
| Hypercholesteremia use Hypercholesterolemia | 
| Hypercholesterolemia | 
| Hypercholesterolemia, Essential use Hyperlipoproteinemia Type II | 
| Hypercholesterolemia, Familial use Hyperlipoproteinemia Type II | 
| Hyperchylomicronemia, Familial use Hyperlipoproteinemia Type I | 
| Hypercoagulability use Thrombophilia | 
| Hypercorticism use Adrenocortical Hyperfunction | 
| Hyperemesis Gravidarum | 
| Hyperemia | 
| Hypereosinophilic Syndrome | 
| Hyperesthesia | 
| Hyperesthesia, Tactile use Hyperesthesia | 
| Hyperesthesia, Thermal use Hyperesthesia | 
| Hypergammaglobulinemia | 
| Hyperglycemia | 
| Hyperglycemic Hyperosmolar Nonketotic Coma | 
| Hyperglycemic Mice use Mice, Obese | 
| Hyperglycinemia, Nonketotic | 
| Hypergravity | 
| Hyperhidrosis | 
| Hyperhidrosis, Gustatory use Sweating, Gustatory | 
| Hyperhomocysteinemia | 
| Hypericaceae use Clusiaceae | 
| Hypericum | 
| Hypericum perforatum use Hypericum | 
| Hypericum perforatum (Homeopathy) | 
| Hyperimmunoglobulin E-Recurrent Infection Syndrome use Job's Syndrome | 
| Hyperimmunoglobulinemia use Hypergammaglobulinemia | 
| Hyperimmunoglobulinemia D use Mevalonate Kinase Deficiency | 
| Hyperinsulinism | 
| Hyperinsulinism, Familial, with Pancreatic Nesidioblastosis use Nesidioblastosis | 
| Hyperkalemia | 
| Hyperkalemic Periodic Paralysis use Paralysis, Hyperkalemic Periodic | 
| Hyperkeratosis Palmaris et Plantaris use Keratoderma, Palmoplantar | 
| Hyperkeratosis, Epidermolytic | 
| Hyperkinesis | 
| Hyperkinetic Heart Syndrome use Neurocirculatory Asthenia | 
| Hyperkinetic Syndrome use Attention Deficit Disorder with Hyperactivity | 
| Hyperlipemia use Hyperlipidemias | 
| Hyperlipidemia, Familial Combined | 
| Hyperlipidemia, Multiple Lipoprotein-Type use Hyperlipidemia, Familial Combined | 
| Hyperlipidemias | 
| Hyperlipoproteinemia Type I | 
| Hyperlipoproteinemia Type II | 
| Hyperlipoproteinemia Type III | 
| Hyperlipoproteinemia Type IV | 
| Hyperlipoproteinemia Type V | 
| Hyperlipoproteinemias | 
| Hyperlysinemias | 
| Hypermedia | 
| Hypermenorrhea use Menorrhagia | 
| Hypermetropia use Hyperopia | 
| Hypermobility, Joint use Joint Instability | 
| Hypermutation, Somatic, Immunoglobulin use Somatic Hypermutation, Immunoglobulin | 
| Hypermyotonia use Muscle Hypertonia | 
| Hypernatremia | 
| Hypernephroma use Carcinoma, Renal Cell | 
| Hyperopia | 
| Hyperostosis | 
| Hyperostosis Corticalis Generalisata use Osteochondrodysplasias | 
| Hyperostosis Frontalis Interna | 
| Hyperostosis, Cortical, Congenital | 
| Hyperostosis, Diffuse Idiopathic Skeletal | 
| Hyperostosis, Sternocostoclavicular | 
| Hyperotreti | 
| Hyperoxaluria | 
| Hyperoxaluria, Primary | 
| Hyperoxia | 
| Hyperparathyroidism | 
| Hyperparathyroidism, Primary | 
| Hyperparathyroidism, Secondary | 
| Hyperphagia | 
| Hyperphenylalaninemia, Non-Phenylketonuric use Phenylketonurias | 
| Hyperphosphatemia | 
| Hyperpigmentation | 
| Hyperpipecolic Acidemia use Peroxisomal Disorders | 
| Hyperpituitarism | 
| Hyperplasia | 
| Hyperplasia, Focal Epithelial use Focal Epithelial Hyperplasia | 
| Hyperplasia, Focal Nodular use Focal Nodular Hyperplasia | 
| Hyperplasia, Giant Lymph Node use Giant Lymph Node Hyperplasia | 
| Hyperplasia, Reactive Lymphoid use Pseudolymphoma | 
| Hyperpotassemia use Hyperkalemia | 
| Hyperprebetalipoproteinemia use Hyperlipoproteinemia Type IV | 
| Hyperprolactinemia | 
| Hyperpyrexia, Malignant use Malignant Hyperthermia | 
| Hyperreflexia use Reflex, Abnormal | 
| Hyperreflexia, Autonomic use Autonomic Dysreflexia | 
| Hypersalivation use Sialorrhea | 
| Hypersensitivity | 
| Hypersensitivity Angiitis use Vasculitis, Hypersensitivity | 
| Hypersensitivity Pneumonitis use Alveolitis, Extrinsic Allergic | 
| Hypersensitivity Pneumonitis, Avian use Bird Fancier's Lung | 
| Hypersensitivity Vasculitis use Vasculitis, Hypersensitivity | 
| Hypersensitivity, Atopic use Hypersensitivity, Immediate | 
| Hypersensitivity, Contact use Dermatitis, Contact | 
| Hypersensitivity, Delayed | 
| Hypersensitivity, Drug use Drug Hypersensitivity | 
| Hypersensitivity, Egg use Egg Hypersensitivity | 
| Hypersensitivity, Environmental use Environmental Illness | 
| Hypersensitivity, Food use Food Hypersensitivity | 
| Hypersensitivity, Immediate | 
| Hypersensitivity, Latex use Latex Hypersensitivity | 
| Hypersensitivity, Milk use Milk Hypersensitivity | 
| Hypersensitivity, Nut use Nut Hypersensitivity | 
| Hypersensitivity, Peanut use Peanut Hypersensitivity | 
| Hypersensitivity, Respiratory use Respiratory Hypersensitivity | 
| Hypersensitivity, Tuberculin-Type use Hypersensitivity, Delayed | 
| Hypersensitivity, Type I use Hypersensitivity, Immediate | 
| Hypersensitivity, Type III use Immune Complex Diseases | 
| Hypersensitivity, Type IV use Hypersensitivity, Delayed | 
| Hypersensitivity, Wheat use Wheat Hypersensitivity | 
| Hypersomnia use Disorders of Excessive Somnolence | 
| Hypersomnia with Periodic Respiration use Sleep Apnea Syndromes | 
| Hypersomnia, Periodic use Kleine-Levin Syndrome | 
| Hypersomnolence use Disorders of Excessive Somnolence | 
| Hypersomnolence, CNS, Idiopathic use Hypersomnolence, Idiopathic | 
| Hypersomnolence, Idiopathic | 
| Hypersplenism | 
| Hypertelorism | 
| Hypertensinogen use Angiotensinogen | 
| Hypertension | 
| Hypertension, Goldblatt use Hypertension, Renovascular | 
| Hypertension, Malignant | 
| Hypertension, Ocular use Ocular Hypertension | 
| Hypertension, Portal | 
| Hypertension, Pregnancy-Induced | 
| Hypertension, Pulmonary | 
| Hypertension, Pulmonary, of Newborn, Persistent use Persistent Fetal Circulation Syndrome | 
| Hypertension, Renal | 
| Hypertension, Renovascular | 
| Hypertensive Encephalopathy | 
| Hypertensive Hemorrhage, Intracranial use Intracranial Hemorrhage, Hypertensive | 
| Hypertext use Hypermedia | 
| Hyperthermia use Fever | 
| Hyperthermia, Induced | 
| Hyperthermia, Local use Hyperthermia, Induced | 
| Hyperthermia, Malignant use Malignant Hyperthermia | 
| Hyperthermia, Therapeutic use Hyperthermia, Induced | 
| Hyperthermus use Pyrodictiaceae | 
| Hyperthyroidism | 
| Hyperthyroxinemia | 
| Hyperthyroxinemia, Familial Dysalbuminemic | 
| Hypertonic Glucose Solution use Glucose Solution, Hypertonic | 
| Hypertonic Saline Solution use Saline Solution, Hypertonic | 
| Hypertonic Solution, Glucose use Glucose Solution, Hypertonic | 
| Hypertonic Solution, Saline use Saline Solution, Hypertonic | 
| Hypertonic Solutions | 
| Hypertrichosis | 
| Hypertriglyceridemia | 
| Hypertriglyceridemia, Familial use Hyperlipoproteinemia Type IV | 
| Hypertrophic Cardiomyopathy use Cardiomyopathy, Hypertrophic | 
| Hypertrophy | 
| Hypertrophy, Left Ventricular | 
| Hypertrophy, Right Ventricular | 
| Hypertropia use Strabismus | 
| Hyperuricemia | 
| Hypervariable Regions use Complementarity Determining Regions | 
| Hyperventilation | 
| Hypervitaminosis A | 
| Hypesthesia | 
| Hypesthesia, Tactile use Hypesthesia | 
| Hypesthesia, Thermal use Hypesthesia | 
| Hyphae | 
| Hyphema | 
| Hyphochytrium use Rhinosporidium | 
| Hyphomicrobiaceae | 
| Hyphomicrobium | 
| Hyphomicrobium methylovorum use Hyphomicrobium | 
| Hyphomycetes use Mitosporic Fungi | 
| Hypnogenic Paroxysmal Dystonia use Nocturnal Paroxysmal Dystonia | 
| Hypnosis | 
| Hypnosis, Anesthetic | 
| Hypnosis, Animal use Immobility Response, Tonic | 
| Hypnosis, Dental | 
| Hypnotics and Sedatives | 
| Hypoactive Sexual Desire Disorder use Sexual Dysfunctions, Psychological | 
| Hypoacusis use Hearing Loss | 
| Hypoalbuminemia | 
| Hypoaldosteronism | 
| Hypoaldosteronism, Hyporeninemic use Hypoaldosteronism | 
| Hypoalphalipoproteinemia, Familial use Hypoalphalipoproteinemias | 
| Hypoalphalipoproteinemias | 
| Hypobetalipoproteinemia, Familial, Apolipoprotein B | 
| Hypobetalipoproteinemias | 
| Hypocalcemia | 
| Hypocapnia | 
| Hypocatalasemia use Acatalasia | 
| Hypochlorhydria use Achlorhydria | 
| Hypochlorite use Hypochlorous Acid | 
| Hypochlorous Acid | 
| Hypocholesteremic Agents use Anticholesteremic Agents | 
| Hypochondriasis | 
| Hypocotyl | 
| Hypocrea | 
| Hypocrea virens use Hypocrea | 
| Hypocreales | 
| Hypocupremia, Congenital use Menkes Kinky Hair Syndrome | 
| Hypodermis use Subcutaneous Tissue | 
| Hypodermyiasis | 
| Hypodontia use Anodontia | 
| Hypodynamia use Hypokinesia | 
| Hypoestes use Acanthaceae | 
| Hypoesthesia use Hypesthesia | 
| Hypogalactia use Lactation Disorders | 
| Hypogammaglobulinemia use Agammaglobulinemia | 
| Hypogastric Plexus | 
| Hypogeusia use Ageusia | 
| Hypoglossal Nerve | 
| Hypoglossal Nerve Diseases | 
| Hypoglycemia | 
| Hypoglycemic Agents | 
| Hypoglycins | 
| Hypogonadism | 
| Hypogravity | 
| Hypohidrosis | 
| Hypokalemia | 
| Hypokalemic Periodic Paralysis | 
| Hypokinesia | 
| Hypokinesia, Experimental use Immobilization | 
| Hypolipoproteinemias | 
| Hypomenorrhea use Menstruation Disturbances | 
| Hypomineralization, Tooth use Tooth Demineralization | 
| Hyponatremia | 
| Hypoparathyroidism | 
| Hypopharyngeal Cancer use Hypopharyngeal Neoplasms | 
| Hypopharyngeal Neoplasms | 
| Hypopharynx | 
| Hypophosphatasia | 
| Hypophosphatemia | 
| Hypophosphatemia, Familial | 
| Hypophosphatemic Rickets, X-Linked Dominant | 
| Hypophosphorous Acids use Phosphinic Acids | 
| Hypophyllum sanguineum | 
| Hypophyseal Disorders use Pituitary Diseases | 
| Hypophysectomy | 
| Hypophysectomy, Chemical | 
| Hypophysial Dwarf use Dwarfism, Pituitary | 
| Hypophysial Stalk use Pituitary Gland | 
| Hypophysis use Pituitary Gland | 
| Hypophysis posterior use Pituitarium posterium | 
| Hypopigmentation | 
| Hypopituitarism | 
| Hypoplastic Anemia, Congenital use Anemia, Hypoplastic, Congenital | 
| Hypoplastic Left Heart Syndrome | 
| Hypopotassemia use Hypokalemia | 
| Hypoproconvertinemia use Factor VII Deficiency | 
| Hypoproteinemia | 
| Hypoprothrombinemias | 
| Hyporeflexia use Reflex, Abnormal | 
| Hyposalivation use Xerostomia | 
| Hyposensitization Therapy use Desensitization, Immunologic | 
| Hyposomatotrophic Dwarfism use Dwarfism, Pituitary | 
| Hypospadias | 
| Hypostasis, Genetic use Epistasis, Genetic | 
| Hypotension | 
| Hypotension, Controlled | 
| Hypotension, Orthostatic | 
| Hypotension, Postural use Hypotension, Orthostatic | 
| Hypothalamic Area, Anterior use Anterior Hypothalamic Nucleus | 
| Hypothalamic Area, Lateral | 
| Hypothalamic Diseases | 
| Hypothalamic Hormones | 
| Hypothalamic Neoplasms | 
| Hypothalamic Nucleus, Dorsomedial use Dorsomedial Hypothalamic Nucleus | 
| Hypothalamic Nucleus, Ventromedial use Ventromedial Hypothalamic Nucleus | 
| Hypothalamic Paraventricular Nucleus use Paraventricular Hypothalamic Nucleus | 
| Hypothalamic Region, Posterior use Hypothalamus, Posterior | 
| Hypothalamic Release-Inhibiting Hormone Receptors use Receptors, Pituitary Hormone-Regulating Hormone | 
| Hypothalamic Releasing Hormone Receptors use Receptors, Pituitary Hormone-Regulating Hormone | 
| Hypothalamic Tumors use Hypothalamic Neoplasms | 
| Hypothalamic-Chiasmatic Neoplasms use Hypothalamic Neoplasms | 
| Hypothalamic-Neurohypophyseal Disorders use Hypothalamic Diseases | 
| Hypothalamic-Pituitary Neoplasms use Hypothalamic Neoplasms | 
| Hypothalamo-Hypophyseal System | 
| Hypothalamus | 
| Hypothalamus (Homeopathy) | 
| Hypothalamus, Anterior | 
| Hypothalamus, Infundibular use Pituitary Gland, Posterior | 
| Hypothalamus, Medial use Hypothalamus, Middle | 
| Hypothalamus, Middle | 
| Hypothalamus, Posterior | 
| Hypothalamus, Supraoptic use Hypothalamus, Anterior | 
| Hypothermia | 
| Hypothermia, Induced | 
| Hypothesis-Testing | 
| Hypothyroidism | 
| Hypotonia use Muscle Hypotonia | 
| Hypotonic Solutions | 
| Hypotrichida | 
| Hypotrichosis | 
| Hypoventilation | 
| Hypoventilation, Central Alveolar use Sleep Apnea, Central | 
| Hypovolemia | 
| Hypovolemic Shock use Shock | 
| Hypoxanthine | 
| Hypoxanthine Oxidase use Xanthine Oxidase | 
| Hypoxanthine Phosphoribosyltransferase | 
| Hypoxanthine-Guanine Phosphoribosyltransferase use Hypoxanthine Phosphoribosyltransferase | 
| Hypoxanthine-Phosphoribosyl-Transferase Deficiency Disease use Lesch-Nyhan Syndrome | 
| Hypoxanthines | 
| Hypoxia use Anoxia | 
| Hypoxia, Brain | 
| Hypoxia, Cellular use Cell Hypoxia | 
| Hypoxia-Inducible Factor 1 | 
| Hypoxia-Inducible Factor 1, alpha Subunit | 
| Hypoxia-Inducible Factor 1, beta Subunit use Aryl Hydrocarbon Receptor Nuclear Translocator | 
| Hypoxia-Ischemia, Brain | 
| Hypoxia-Ischemia, Cerebral use Hypoxia-Ischemia, Brain | 
| Hypoxic Encephalopathy use Hypoxia, Brain | 
| Hypoxic-Ischemic Encephalopathy use Hypoxia-Ischemia, Brain | 
| Hypoxis | 
| Hypsarrhythmia use Spasms, Infantile | 
| Hyptis | 
| Hyraxes | 
| Hyssop, Giant use Agastache | 
| Hyssopus use Lamiaceae | 
| Hysterectomy | 
| Hysterectomy, Vaginal | 
| Hysteria | 
| Hysteria, Conversion use Conversion Disorder | 
| Hysteria, Dissociative use Dissociative Disorders | 
| Hysterical Personality use Histrionic Personality Disorder | 
| Hysterosalpingography | 
| Hysteroscopes | 
| Hysteroscopic Surgical Procedures use Hysteroscopy | 
| Hysteroscopy | 
| Hysterotomy | 
| Hystrix use Porcupines | 
| h-Strophanthin use Cymarine | 
| hCG Receptors use Receptors, LH | 
| hK1 Kallikrein use Tissue Kallikreins | 
| hK2 Kallikrein use Tissue Kallikreins | 
| hK3 Kallikrein use Prostate-Specific Antigen | 
| hPTH (1-34) use Teriparatide | 
| haematobia irritans use Muscidae | 
| hck Proto-Oncogene Proteins use Proto-Oncogene Proteins c-hck | 
| hnRNP A-B Proteins use Heterogeneous-Nuclear Ribonucleoprotein Group A-B | 
| hnRNP M use Heterogeneous-Nuclear Ribonucleoprotein Group M | 
| hsp10 Family use Chaperonin 10 | 
| hsp60 Family use Chaperonin 60 |