title: Crossover study with nebulized bronchodilators and atropine.
mesh_terms: D000336:Aerosols; D000403:Airway Resistance; D001249:Asthma / Q000188:drug therapy* / Q000503:physiopathology; D001285:Atropine / Q000008:administration & dosage* / Q000627:therapeutic use; D001993:Bronchodilator Agents / Q000008:administration & dosage* / Q000627:therapeutic use; D002986:Clinical Trials as Topic; D004311:Double-Blind Method; D005280:Fenoterol / Q000008:administration & dosage / Q000627:therapeutic use; D006801:Humans; D007545:Isoproterenol / Q000008:administration & dosage / Q000627:therapeutic use; D011656:Pulmonary Emphysema / Q000188:drug therapy / Q000503:physiopathology; D013147:Spirometry
chemical_list: D000336:Aerosols; D001993:Bronchodilator Agents; D005280:Fenoterol; D001285:Atropine; D007545:Isoproterenol