title: Prevalence of bronchial reactivity to inhaled methacholine in New Zealand children.
mesh_terms: D000403:Airway Resistance / Q000187:drug effects*; D001249:Asthma / Q000175:diagnosis*; D002648:Child; D006801:Humans; D016210:Methacholine Chloride; D008688:Methacholine Compounds
chemical_list: D008688:Methacholine Compounds; D016210:Methacholine Chloride