title: Single versus multiple aerosol bronchodilator dosage in chronic obstructive pulmonary disease.
mesh_terms: D000328:Adult; D000336:Aerosols; D000368:Aged; D001991:Bronchitis / Q000188:drug therapy; D001993:Bronchodilator Agents / Q000627:therapeutic use*; D002908:Chronic Disease; D005069:Evaluation Studies as Topic; D006801:Humans; D007545:Isoproterenol / Q000627:therapeutic use; D008173:Lung Diseases, Obstructive / Q000188:drug therapy*; D008875:Middle Aged; D010656:Phenylephrine / Q000627:therapeutic use; D011656:Pulmonary Emphysema / Q000188:drug therapy; D012129:Respiratory Function Tests
chemical_list: D000336:Aerosols; D001993:Bronchodilator Agents; D010656:Phenylephrine; D007545:Isoproterenol