- Haemophilus Infections - 23 Studies
- Haemophilus Influenzae - 19 Studies
- Hailey-Hailey Disease - 0 Studies
- Hair Diseases - 23 Studies
- Hairy Cell Leukemia - 26 Studies
- Halitosis - 26 Studies
- Hallucinations - 24 Studies
- Hallux Limitus - 3 Studies
- Hallux Rigidus - 2 Studies
- Hallux Valgus - 21 Studies
- Hamartoma - 4 Studies
- Hamartoma Syndrome, Multiple - 0 Studies
- Hammer Toe Syndrome - 4 Studies
- Hand Deformities - 3 Studies
- Hand Deformities, Congenital - 0 Studies
- Hand Dermatoses - 6 Studies
- Hand Injuries - 15 Studies
- Hand, Foot and Mouth Disease - 1 Studies
- Hand-Foot Syndrome - 14 Studies
- Hansen's Disease - 17 Studies
- Hantavirus Infections - 9 Studies
- Hantavirus Pulmonary Syndrome - 0 Studies
- Hashimoto Disease - 22 Studies
- Hashimoto's Encephalitis - 0 Studies
- Head Injuries, Closed - 21 Studies
- Head Injuries, Penetrating - 0 Studies
- Headache Disorders - 24 Studies
- Headache Disorders, Primary - 19 Studies
- Headache Disorders, Secondary - 23 Studies
- Hearing Disorders - 19 Studies
- Hearing Loss - 41 Studies
- Hearing Loss, Bilateral - 14 Studies
- Hearing Loss, Central - 0 Studies
- Hearing Loss, Conductive - 21 Studies
- Hearing Loss, High-Frequency - 3 Studies
- Hearing Loss, Mixed Conductive-Sensorineural - 3 Studies
- Hearing Loss, Noise-Induced - 9 Studies
- Hearing Loss, Sensorineural - 24 Studies
- Hearing Loss, Sudden - 4 Studies
- Hearing Loss, Unilateral - 3 Studies
- Heart Arrest - 25 Studies
- Heart Block - 9 Studies
- Heart Defects, Congenital - 26 Studies
- Heart Failure, Diastolic - 28 Studies
- Heart Failure, Systolic - 27 Studies
- Heart Injuries - 6 Studies
- Heart Murmurs - 10 Studies
- Heart Neoplasms - 5 Studies
- Heart Septal Defects - 22 Studies
- Heart Septal Defects, Atrial - 11 Studies
- Heart Septal Defects, Ventricular - 6 Studies
- Heart Tumor - 0 Studies
- Heartburn - 25 Studies
- Heat Stress Disorders - 17 Studies
- Heat Stroke - 4 Studies
- Heavy Metal Poisoning - 3 Studies
- Heel Spur - 3 Studies
- Helicobacter Infections - 25 Studies
- HELLP Syndrome - 14 Studies
- Helminthiasis - 21 Studies
- Hemangioblastoma - 0 Studies
- Hemangioendothelioma - 5 Studies
- Hemangioendothelioma, Epithelioid - 0 Studies
- Hemangioma - 24 Studies
- Hemangioma Thrombocytopenia Syndrome - 0 Studies
- Hemangioma, Capillary - 19 Studies
- Hemangioma, Cavernous - 2 Studies
- Hemangioma, Cavernous, Central Nervous System - 0 Studies
- Hemangiopericytoma - 6 Studies
- Hemangiosarcoma - 13 Studies
- Hemarthrosis - 11 Studies
- Hematemesis - 7 Studies
- Hematologic Neoplasms - 25 Studies
- Hematoma - 25 Studies
- Hematoma, Epidural, Cranial - 0 Studies
- Hematoma, Epidural, Spinal - 0 Studies
- Hematoma, Subdural - 5 Studies
- Hematoma, Subdural, Acute - 0 Studies
- Hematoma, Subdural, Chronic - 10 Studies
- Hematoma, Subdural, Intracranial - 0 Studies
- Hematuria - 23 Studies
- Hemianopsia - 15 Studies
- Hemifacial Microsomia - 0 Studies
- Hemifacial Spasm - 9 Studies
- Hemihypertrophy - 0 Studies
- Hemiplegia - 28 Studies
- Hemiplegic Migraine - 2 Studies
- Hemochromatosis - 25 Studies
- Hemoglobin C Disease - 6 Studies
- Hemoglobin SC Disease - 12 Studies
- Hemoglobinopathies - 12 Studies
- Hemoglobinuria - 23 Studies
- Hemoglobinuria, Paroxysmal - 8 Studies
- Hemolysis - 12 Studies
- Hemolytic-Uremic Syndrome - 2 Studies
- Hemoperitoneum - 2 Studies
- Hemophagocytic Lymphohistiocytosis - 20 Studies
- Hemophilia - 31 Studies
- Hemophilia A - 34 Studies
- Hemophilia B - 25 Studies
- Hemophilic Arthropathy - 11 Studies
- Hemopneumothorax - 3 Studies
- Hemoptysis - 13 Studies
- Hemorrhagic Fever - 19 Studies
- Hemorrhagic Fever with Renal Syndrome - 1 Studies
- Hemorrhagic Fever, Crimean - 0 Studies
- Hemorrhagic Fever, Ebola - 4 Studies
- Hemorrhagic Fevers, Viral - 0 Studies
- Hemorrhoids - 26 Studies
- Hemosiderosis - 22 Studies
- Hemothorax - 5 Studies
- Henoch-Schonlein Purpura - 12 Studies
- Heparin-induced Thrombocytopenia - 24 Studies
- Hepatic Encephalopathy - 33 Studies
- Hepatic Insufficiency - 29 Studies
- Hepatic Veno-Occlusive Disease - 12 Studies
- Hepatitis B, Chronic - 27 Studies
- Hepatitis D - 26 Studies
- Hepatitis D, Chronic - 2 Studies
- Hepatitis E - 21 Studies
- Hepatitis, Alcoholic - 25 Studies
- Hepatitis, Autoimmune - 0 Studies
- Hepatoblastoma - 19 Studies
- Hepatolenticular Degeneration - 16 Studies
- Hepatomegaly - 3 Studies
- Hepatopulmonary Syndrome - 8 Studies
- Hepatorenal Syndrome - 25 Studies
- Hereditary Amyloidosis - 0 Studies
- Hereditary Angioedema - 5 Studies
- Hereditary Angioedema Types I and II - 4 Studies
- Hereditary Antithrombin Deficiency - 0 Studies
- Hereditary Ataxia - 3 Studies
- Hereditary Autoinflammatory Diseases - 0 Studies
- Hereditary Breast and Ovarian Cancer Syndrome - 25 Studies
- Hereditary Central Nervous System Demyelinating Diseases - 20 Studies
- Hereditary Cerebral Hemorrhage With Amyloidosis - 0 Studies
- Hereditary Coproporphyria - 0 Studies
- Hereditary Fructose Intolerance - 0 Studies
- Hereditary Hemorrhagic Telangiectasia - 19 Studies
- Hereditary Hyperekplexia - 4 Studies
- Hereditary Leiomyomatosis and Renal Cell Cancer - 2 Studies
- Hereditary Motor and Sensory Neuropathy - 1 Studies
- Hereditary Multiple Osteochondromas - 0 Studies
- Hereditary Neuropathy With Liability to Pressure Palsy - 0 Studies
- Hereditary Pancreatitis - 3 Studies
- Hereditary Sensory and Autonomic Neuropathies - 2 Studies
- Hereditary Sensory and Motor Neuropathy - 0 Studies
- Hereditary Spastic Paraplegia - 8 Studies
- Hereditary Spherocytosis - 1 Studies
- Heredodegenerative Disorders, Nervous System - 2 Studies
- Hermanski-Pudlak Syndrome - 0 Studies
- Hermansky-Pudlak Syndrome - 0 Studies
- Hernia - 28 Studies
- Hernia, Abdominal - 24 Studies
- Hernia, Diaphragmatic - 1 Studies
- Hernia, Femoral - 5 Studies
- Hernia, Hiatal - 23 Studies
- Hernia, Inguinal - 23 Studies
- Hernia, Umbilical - 25 Studies
- Hernia, Ventral - 20 Studies
- Hernias, Diaphragmatic, Congenital - 0 Studies
- Heroin Dependence - 25 Studies
- Herpangina - 0 Studies
- Herpes Genitalis - 25 Studies
- Herpes Labialis - 25 Studies
- Herpes Simplex - 23 Studies
- Herpes Simplex Encephalitis - 0 Studies
- Herpes Zoster - 30 Studies
- Herpes Zoster Ophthalmicus - 2 Studies
- Heterotaxy - 1 Studies
- Heterotaxy Syndrome - 0 Studies
- Hiccup - 2 Studies
- Hidradenitis - 19 Studies
- Hidradenitis Suppurativa - 20 Studies
- Hip Dislocation - 23 Studies
- Hip Dislocation, Congenital - 10 Studies
- Hip Fractures - 35 Studies
- Hip Injuries - 22 Studies
- Hirschsprung Disease - 19 Studies
- Hirsutism - 20 Studies
- Histiocytic Necrotizing Lymphadenitis - 2 Studies
- Histiocytic Sarcoma - 1 Studies
- Histiocytoma - 9 Studies
- Histiocytoma, Benign Fibrous - 4 Studies
- Histiocytoma, Malignant Fibrous - 2 Studies
- Histiocytosis - 21 Studies
- Histiocytosis, Langerhans-Cell - 4 Studies
- Histiocytosis, Non-Langerhans-Cell - 0 Studies
- Histiocytosis, Sinus - 0 Studies
- Histoplasmosis - 11 Studies
- HIV Enteropathy - 3 Studies
- HIV Seropositivity - 26 Studies
- HIV Wasting Syndrome - 11 Studies
- HIV-Associated Lipodystrophy Syndrome - 22 Studies
- Hoarding Disorder - 15 Studies
- Hoarseness - 2 Studies
- Hodgkin Lymphoma, Childhood - 19 Studies
- Holoprosencephaly - 1 Studies
- Homocystinuria - 4 Studies
- Homologous Wasting Disease - 12 Studies
- Hookworm Infections - 1 Studies
- Hordeolum - 0 Studies
- Horner Syndrome - 2 Studies
- Hot Flashes - 32 Studies
- Hoyeraal Hreidarsson Syndrome - 0 Studies
- HTLV-1 Associated Myelopathy/tropical Spastic Paraparesis - 9 Studies
- HTLV-I Infections - 14 Studies
- HTLV-II Infections - 0 Studies
- Human T-cell Leukemia Virus Type 1 - 5 Studies
- Human T-cell Leukemia Virus Type 2 - 2 Studies
- Humeral Fractures - 21 Studies
- Huntington Disease - 28 Studies
- Hurler Syndrome - 21 Studies
- Hurler–Scheie Syndrome - 4 Studies
- Hurthle Cell Thyroid Cancer - 3 Studies
- Hutchinson's Melanotic Freckle - 9 Studies
- Hyaline Membrane Disease - 24 Studies
- Hydatidiform Mole - 1 Studies
- Hydatidiform Mole, Invasive - 0 Studies
- Hydatidosis - 0 Studies
- Hydrarthrosis - 2 Studies
- Hydrocephalus - 29 Studies
- Hydrocephalus, Normal Pressure - 12 Studies
- Hydronephrosis - 21 Studies
- Hydrophthalmos - 0 Studies
- Hydrops Fetalis - 0 Studies
- Hydrothorax - 7 Studies
- Hyper IgE Syndrome - 11 Studies
- Hyper-IgD Syndrome - 2 Studies
- Hyper-IgM Immunodeficiency Syndrome - 3 Studies
- Hyper-IgM Immunodeficiency Syndrome, Type 1 - 0 Studies
- Hyperacusis - 8 Studies
- Hyperadrenalism - 0 Studies
- Hyperaldosteronism - 9 Studies
- Hyperalgesia - 26 Studies
- Hyperammonemia - 13 Studies
- Hyperandrogenism - 17 Studies
- Hyperargininemia - 0 Studies
- Hyperbilirubinemia - 23 Studies
- Hyperbilirubinemia, Neonatal - 11 Studies
- Hypercalcemia - 22 Studies
- Hypercalciuria - 18 Studies
- Hypercapnia - 28 Studies
- Hypercholesterolemia - 35 Studies
- Hyperemesis Gravidarum - 17 Studies
- Hyperemia - 22 Studies
- Hypereosinophilic Syndrome - 14 Studies
- Hyperglycemia - 29 Studies
- Hyperhidrosis - 25 Studies
- Hyperhomocysteinemia - 24 Studies
- Hyperkalemia - 27 Studies
- Hyperkalemic Periodic Paralysis - 2 Studies
- Hyperkeratosis, Epidermolytic - 0 Studies
- Hyperkinesis - 21 Studies
- Hyperlactatemia - 13 Studies
- Hyperlipidemia Type 3 - 3 Studies
- Hyperlipidemia, Familial Combined - 24 Studies
- Hyperlipoproteinemia Type 2 - 25 Studies
- Hyperlipoproteinemia Type 5 - 3 Studies
- Hyperlipoproteinemia Type I - 0 Studies
- Hyperlipoproteinemia Type II - 17 Studies
- Hyperlipoproteinemia Type III - 1 Studies
- Hyperlipoproteinemia Type IV - 3 Studies
- Hyperlipoproteinemia Type V - 0 Studies
- Hyperlipoproteinemias - 12 Studies
- Hypernatremia - 21 Studies
- Hyperopia - 25 Studies
- Hyperostosis - 1 Studies
- Hyperoxaluria - 25 Studies
- Hyperoxaluria, Primary - 0 Studies
- Hyperoxia - 25 Studies
- Hyperparathyroidism - 25 Studies
- Hyperparathyroidism, Primary - 9 Studies
- Hyperparathyroidism, Secondary - 21 Studies
- Hyperphagia - 19 Studies
- Hyperphosphatemia - 25 Studies
- Hyperpigmentation - 24 Studies
- Hyperplasia - 18 Studies
- Hyperprolactinemia - 0 Studies
- Hypersensitivity Pneumonitis - 0 Studies
- Hypersensitivity Vasculitis - 0 Studies
- Hypersensitivity, Delayed - 6 Studies
- Hypersomnolence, Idiopathic - 0 Studies
- Hypersplenism - 5 Studies
- Hypertelorism - 0 Studies
- Hypertension, Portal - 25 Studies
- Hypertension, Pregnancy-Induced - 25 Studies
- Hypertension, Pulmonary - 28 Studies
- Hypertension, Renal - 23 Studies
- Hypertension, Renovascular - 1 Studies
- Hypertensive Encephalopathy - 2 Studies
- Hypertensive Retinopathy - 3 Studies
- Hyperthyroidism - 24 Studies
- Hypertrichosis - 2 Studies
- Hypertriglyceridemia - 27 Studies
- Hypertriglyceridemic Waist - 2 Studies
- Hypertrophy - 25 Studies
- Hypertrophy, Left Ventricular - 17 Studies
- Hypertrophy, Right Ventricular - 3 Studies
- Hyperuricemia - 23 Studies
- Hyperventilation - 18 Studies
- Hypervitaminosis A - 2 Studies
- Hypesthesia - 25 Studies
- Hypoadrenalism - 0 Studies
- Hypoalbuminemia - 18 Studies
- Hypoaldosteronism - 2 Studies
- Hypoalphalipoproteinemias - 9 Studies
- Hypobetalipoproteinemias - 0 Studies
- Hypocalcemia - 24 Studies
- Hypocapnia - 4 Studies
- Hypochondriasis - 12 Studies
- Hypochondroplasia - 1 Studies
- Hypocomplementemic Urticarial Vasculitis - 1 Studies
- Hypoglycemia - 27 Studies
- Hypogonadism - 25 Studies
- Hypohidrosis - 1 Studies
- Hypohidrotic Ectodermal Dysplasia - 0 Studies
- Hypokalemia - 15 Studies
- Hypokalemic Periodic Paralysis - 2 Studies
- Hypokinesia - 22 Studies
- Hypolipoproteinemias - 1 Studies
- Hypomelanotic Disorder - 23 Studies
- Hyponatremia - 27 Studies
- Hypoparathyroidism - 25 Studies
- Hypopharyngeal Cancer - 25 Studies
- Hypopharyngeal Neoplasms - 10 Studies
- Hypophosphatasia - 25 Studies
- Hypophosphatemia - 7 Studies
- Hypophosphatemia, Familial - 6 Studies
- Hypophosphatemic Rickets - 0 Studies
- Hypopigmentation - 4 Studies
- Hypopituitarism - 22 Studies
- Hypoplastic Left Heart Syndrome - 24 Studies
- Hypoplastic Right Heart Syndrome - 2 Studies
- Hypoproteinemia - 1 Studies
- Hypospadias - 24 Studies
- Hypotension - 30 Studies
- Hypotension, Orthostatic - 21 Studies
- Hypothalamic Diseases - 19 Studies
- Hypothalamic Dysfunction - 0 Studies
- Hypothalamic Neoplasms - 18 Studies
- Hypothermia - 27 Studies
- Hypothyroidism - 25 Studies
- Hypotrichosis - 12 Studies
- Hypoventilation - 21 Studies
- Hypovolemia - 26 Studies
- Hypoxia, Brain - 22 Studies
- Hypoxia-Ischemia, Brain - 17 Studies
- Hysteria - 2 Studies
