title: [Lung function in asymptomatic cigarette smokers. The nigrogen gradient (author's transl)].
mesh_terms: D000328:Adult; D000402:Airway Obstruction / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D008168:Lung / Q000503:physiopathology; D009584:Nitrogen; D012129:Respiratory Function Tests / Q000379:methods*; D012907:Smoking
chemical_list: D009584:Nitrogen
vernacular_title: Función pulmonar en fumadores asintomáticos: la gradiente de nitrógeno.