title: [Importance of the phonocardiogram in the diagnosis of pulmonary heart disease in patients with chronic nonspecific lung diseases].
mesh_terms: D000293:Adolescent; D000328:Adult; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008171:Lung Diseases / Q000150:complications*; D008297:Male; D008875:Middle Aged; D010701:Phonocardiography; D011660:Pulmonary Heart Disease / Q000175:diagnosis* / Q000209:etiology
vernacular_title: Znachenie fonokardiogrammy v diagnostike legochnogo serdtsa u bol'nykh khronicheskimi nespetsificheskimi zabolevaniiami legkikh