title: [Effectiveness of preventive treatment of patients with chronic pneumonia].
mesh_terms: D000328:Adult; D002908:Chronic Disease; D006801:Humans; D008297:Male; D008875:Middle Aged; D011014:Pneumonia / Q000188:drug therapy*
vernacular_title: Ob éffektivnosti protivoretsidivnogo lecheniia bol'nykh khronicheskoĭ pnevmonieĭ.