Evaluation of a new bronchodilator aerosol and its components in pulmonary emphysema.
D000336:Aerosols; D000368:Aged; D006801:Humans; D007545:Isoproterenol / Q000008:administration & dosage*; D008875:Middle Aged; D011656:Pulmonary Emphysema / Q000188:drug therapy*; D013501:Surface-Active Agents
D000336:Aerosols; D013501:Surface-Active Agents; D007545:Isoproterenol