Therapeutic efficacy of cromolyn in childhood asthma.
D000336:Aerosols; D001249:Asthma / Q000517:prevention & control*; D002648:Child; D002986:Clinical Trials as Topic; D003371:Cough / Q000517:prevention & control; D004205:Cromolyn Sodium / Q000008:administration & dosage / Q000627:therapeutic use*; D004341:Drug Evaluation; D006801:Humans; D005082:Physical Exertion; D010919:Placebos; D012138:Respiratory Therapy / Q000295:instrumentation
D000336:Aerosols; D010919:Placebos; D004205:Cromolyn Sodium