title: [Interest of epidemiological investigations for a better knowledge of chronic bronchitis (author's transl)].
mesh_terms: D000328:Adult; D001991:Bronchitis / Q000175:diagnosis / Q000453:epidemiology* / Q000209:etiology / Q000401:mortality; D002908:Chronic Disease; D004812:Epidemiologic Methods; D005060:Europe; D006801:Humans; D008297:Male; D008875:Middle Aged; D009784:Occupational Diseases / Q000209:etiology; D011379:Prognosis; D012129:Respiratory Function Tests; D012907:Smoking / Q000150:complications; D014481:United States
vernacular_title: Importance des recherches épidémiologiques pour une meilleure connaissance de la bronchite chronique.