title: Methacholine inhalation challenge studies.
mesh_terms: D000328:Adult; D001249:Asthma / Q000175:diagnosis*; D001985:Bronchial Provocation Tests; D002648:Child; D005260:Female; D005541:Forced Expiratory Volume; D006632:Histamine / Q000276:immunology; D006801:Humans; D006969:Hypersensitivity, Immediate / Q000175:diagnosis / Q000235:genetics; D008297:Male; D008688:Methacholine Compounds / Q000008:administration & dosage / Q000276:immunology
chemical_list: D008688:Methacholine Compounds; D006632:Histamine