title: [Diagnosis of initial stage of cardiac insufficiency in children with acquired heart defects].
mesh_terms: D002648:Child; D005080:Exercise Test; D006321:Heart / Q000503:physiopathology*; D006439:Hemodynamics; D006801:Humans; D008944:Mitral Valve Insufficiency / Q000503:physiopathology*; D012214:Rheumatic Heart Disease / Q000503:physiopathology*; D013997:Time Factors
vernacular_title: O diagnostike nachal'noĭ serdechnoĭ nedostatochnosti u deteĭ s priobretennymi porokami serdtsa.