title: A problem in clinical research: asthma and cromolyn sodium.
mesh_terms: D000328:Adult; D001249:Asthma / Q000175:diagnosis / Q000188:drug therapy*; D002648:Child; D002986:Clinical Trials as Topic; D004205:Cromolyn Sodium / Q000627:therapeutic use*; D004341:Drug Evaluation; D006801:Humans; D012129:Respiratory Function Tests
chemical_list: D004205:Cromolyn Sodium