title: [Methodology of surveys of chronic bronchitis].
mesh_terms: D000328:Adult; D000368:Aged; D001991:Bronchitis / Q000453:epidemiology*; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D013030:Spain
vernacular_title: Méthodologie des enquêtes concernant la bronchite chronique