HA

H antigen; Hakim-Adams [syndrome]; halothane anesthesia; Hartley [guinea pig]; headache; health affairs; health alliance; health authority; hearing aid; height age; hemadsorption; hemagglutinating antibody; hemagglutination; hemagglutinin; hemolytic anemia; hemophiliac with adenopathy; hepatic adenoma; hepatic artery; hepatitis A; hepatitis-associated; heteroduplex analysis; heterophil antibody; Heyden antibiotic; high anxiety; hippocampal asymmetry; hippuric acid; histamine; histocompatibility antigen; Horton arteritis; hospital administration; hospital admission; hospital apprentice; Hounsfield unit; human albumin; hyaluronic acid; hydroxyapatite; hydroxylamine; hyperactive; hyperalimentation; hyperandrogenism; hypersensitivity alveolitis; hypothalamic amenorrhea

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alternative hypothesis.