title: [Epidemiology of chronic bronchitis].
mesh_terms: D000368:Aged; D001991:Bronchitis / Q000453:epidemiology* / Q000473:pathology; D002908:Chronic Disease; D004812:Epidemiologic Methods; D005191:Family Characteristics; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012737:Sex Factors
vernacular_title: Epidémiologie de la bronchite chronique.