title: Chronic bronchitis and emphysema: recent trends.
mesh_terms: D000402:Airway Obstruction / Q000209:etiology; D001991:Bronchitis / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D002908:Chronic Disease; D006801:Humans; D011656:Pulmonary Emphysema / Q000175:diagnosis / Q000503:physiopathology / Q000628:therapy; D012129:Respiratory Function Tests; D012907:Smoking / Q000150:complications