title: [Epidemiologic study of nonspecific bronchopathies].
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D001991:Bronchitis / Q000453:epidemiology* / Q000517:prevention & control; D002908:Chronic Disease; D004391:Dust; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012383:Romania; D012907:Smoking; D014505:Urban Population
chemical_list: D004391:Dust
vernacular_title: Etude épidémiologique des bronchopathies non spécifiques.