title: [Cause of refractory chronic cardiac insufficiency].
mesh_terms: D002908:Chronic Disease; D006331:Heart Diseases / Q000209:etiology*; D006801:Humans; D011660:Pulmonary Heart Disease / Q000209:etiology
vernacular_title: Prichiny refrakternosti khronicheskoĭ serdechnoĭ nedostatochnosti