title: [Chronic bronchitis and emphysema, poorly understood diseases (author's transl)].
mesh_terms: D001991:Bronchitis / Q000453:epidemiology / Q000209:etiology; D002908:Chronic Disease; D004739:England; D005602:France; D006801:Humans; D011656:Pulmonary Emphysema / Q000453:epidemiology / Q000209:etiology; D014481:United States
vernacular_title: Bronchite chronique et emphysème pulmonaire, maladies mal connues.