Methacholine for diagnosis of asthma.
D001249:Asthma / Q000175:diagnosis*; D001985:Bronchial Provocation Tests / Q000379:methods*; D005188:False Negative Reactions; D005189:False Positive Reactions; D006801:Humans; D016210:Methacholine Chloride; D008688:Methacholine Compounds / Q000009:adverse effects
D008688:Methacholine Compounds; D016210:Methacholine Chloride