Beliaeva, A T [Significance of vectorcardiography in the evaluation of hypertrophy of the heart ventricles in patients with ventricular septal defect]. [electronic resource] - Sovetskaia meditsina Sep 1965 - 10-7 p. digital Publication Type: Journal Article ISSN: 0038-5077 Subjects--Topical Terms: AdolescentCardiomegaly--diagnosisHeart Septal Defects, Ventricular--diagnosisHumansVectorcardiography