title: Chronic bronchitis and cystic fibrosis: two chronic obstructive lung diseases of adults.
mesh_terms: D000328:Adult; D001991:Bronchitis / Q000175:diagnosis / Q000628:therapy; D002908:Chronic Disease; D003550:Cystic Fibrosis / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D011379:Prognosis