title: Factors affecting the decline of FEV1 in chronic bronchitis.
mesh_terms: D000328:Adult; D000367:Age Factors; D000368:Aged; D000402:Airway Obstruction / Q000150:complications / Q000175:diagnosis; D001249:Asthma / Q000150:complications; D001986:Bronchial Spasm / Q000150:complications; D001991:Bronchitis / Q000150:complications / Q000503:physiopathology*; D002908:Chronic Disease; D006801:Humans; D007545:Isoproterenol; D008297:Male; D008875:Middle Aged; D011446:Prospective Studies; D012141:Respiratory Tract Infections / Q000150:complications; D012907:Smoking / Q000150:complications; D013147:Spirometry; D013997:Time Factors
chemical_list: D007545:Isoproterenol