title: Comparative examination of some broncholytic substances in chronic obstructive bronchitis.
mesh_terms: D001285:Atropine / Q000627:therapeutic use*; D001991:Bronchitis / Q000188:drug therapy; D001993:Bronchodilator Agents / Q000627:therapeutic use*; D002908:Chronic Disease; D006801:Humans; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D008297:Male; D012129:Respiratory Function Tests
chemical_list: D001993:Bronchodilator Agents; D001285:Atropine