title: Histamine and methacholine challenge cut points.
authors.forename: Donald W
authors.initials: DW
authors.lastname: Cockcroft
authors.forename: Beth E
authors.initials: BE
authors.lastname: Davis
mesh_terms: D000280:Administration, Inhalation; D000328:Adult; D001249:Asthma / Q000175:diagnosis*; D001985:Bronchial Provocation Tests / Q000379:methods*; D005260:Female; D006632:Histamine / Q000008:administration & dosage; D006801:Humans; D008297:Male; D016210:Methacholine Chloride / Q000008:administration & dosage; D012680:Sensitivity and Specificity
chemical_list: D016210:Methacholine Chloride; D006632:Histamine