Makolkin, V I [Electro- and vectorcardiographic study of patients with congenital heart defects concomitant with left to right shunt]. [electronic resource] - Kardiologiia Feb 1967 - 76-7 p. digital Publication Type: Journal Article ISSN: 0022-9040 Subjects--Topical Terms: Cardiomegaly--etiologyDuctus Arteriosus, Patent--physiopathologyElectrocardiographyHeart Defects, Congenital--complicationsHeart Septal Defects, Ventricular--physiopathologyHypertension, Pulmonary--complicationsLung--physiopathologyPulmonary CirculationRegional Blood FlowVectorcardiography