title: [Epidemiological contribution to the etiology of chronic bronchitis. I. Study on the reproducibility of the answers to the questionnaires on chronic bronchitis].
mesh_terms: D001991:Bronchitis / Q000209:etiology*; D003032:Coal Mining; D003371:Cough / Q000209:etiology; D004417:Dyspnea / Q000209:etiology; D004812:Epidemiologic Methods; D008487:Medical History Taking; D012907:Smoking; D011795:Surveys and Questionnaires / Q000592:standards*
vernacular_title: Apport épidémiologique à l'étiologie de la bronchite chronique. I. Etude de la reproductibilité des réponses aux questionnaires sur la bronchite chronique.