Antitussive mixture. A study of the relative importance of various elements.
D000996:Antitussive Agents / Q000008:administration & dosage*; D001249:Asthma / Q000188:drug therapy*; D003371:Cough / Q000188:drug therapy*; D006801:Humans; D008297:Male; D011656:Pulmonary Emphysema / Q000188:drug therapy*
D000996:Antitussive Agents