title: [Chronic bronchitis in young persons].
mesh_terms: D000293:Adolescent; D000328:Adult; D001991:Bronchitis / Q000175:diagnosis* / Q000517:prevention & control; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008403:Mass Screening; D012426:Russia; D013333:Student Health Services / Q000600:supply & distribution; D013337:Students, Medical
vernacular_title: Khronicheskii bronkhit u lits molodogo vozrasta.