title: Application of a new direct-writing recorder device, the "Astograph," to the evaluation of methacholine-induced bronchoconstriction in asthmatic children.
mesh_terms: D000293:Adolescent; D000328:Adult; D001249:Asthma; D001980:Bronchi / Q000187:drug effects*; D001985:Bronchial Provocation Tests / Q000295:instrumentation*; D001995:Bronchography; D002648:Child; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D008297:Male; D016210:Methacholine Chloride; D008688:Methacholine Compounds / Q000494:pharmacology*; D010366:Peak Expiratory Flow Rate; D014797:Vital Capacity
chemical_list: D008688:Methacholine Compounds; D016210:Methacholine Chloride