Meshalkin, E N [Clinical course of heart defects with overfilling of the lesser circulation in children during the 1st 3 years of life]. [electronic resource] - Voprosy okhrany materinstva i detstva Dec 1972 - 65-70 p. digital Publication Type: Journal Article ISSN: 0042-8825 Subjects--Topical Terms: Child, PreschoolDuctus Arteriosus, Patent--epidemiologyFemaleHeart Defects, Congenital--epidemiologyHeart Septal Defects--epidemiologyHumansInfantInfant, NewbornMalePulmonary CirculationUSSR