title: Selectivity of anticholinergic drugs on central and peripheral airways in normal subjects.
mesh_terms: D000281:Administration, Intranasal; D000328:Adult; D000403:Airway Resistance / Q000187:drug effects; D001286:Atropine Derivatives; D005260:Female; D006801:Humans; D007275:Injections, Intravenous; D009241:Ipratropium / Q000008:administration & dosage; D008168:Lung / Q000187:drug effects / Q000502:physiology*; D008176:Lung Volume Measurements; D008297:Male; D012016:Reference Values; D012129:Respiratory Function Tests
chemical_list: D001286:Atropine Derivatives; D009241:Ipratropium