title: [Tobacco and chronic bronchitis. Early detection of pulmonary function changes in smokers].
mesh_terms: D000328:Adult; D001991:Bronchitis / Q000209:etiology* / Q000503:physiopathology; D002908:Chronic Disease; D004417:Dyspnea / Q000209:etiology; D005540:Forced Expiratory Flow Rates; D006801:Humans; D008297:Male; D008875:Middle Aged; D012129:Respiratory Function Tests; D012907:Smoking
vernacular_title: Tabaco y bronquitis crónica. Detección precoz de alteraciones de la función pulmonar en fumadores.