Evaluation of bronchodilators and mucolytic agents.
D001986:Bronchial Spasm / Q000188:drug therapy; D001993:Bronchodilator Agents / Q000627:therapeutic use*; D002908:Chronic Disease; D005100:Expectorants / Q000627:therapeutic use*; D006801:Humans; D008171:Lung Diseases / Q000188:drug therapy
D001993:Bronchodilator Agents; D005100:Expectorants