Lev, M Lack of connection between the atria and the more peripheral conduction system in congenital atrioventricular block. [electronic resource] - The American journal of cardiology May 1971 - 481-90 p. digital Publication Type: Journal Article ISSN: 0002-9149 Standard No.: 10.1016/0002-9149(71)90410-3 doi Subjects--Topical Terms: AutopsyElectrocardiographyFemaleHeart Atria--abnormalitiesHeart Block--congenitalHeart Conduction System--abnormalitiesHeart Ventricles--pathologyHumansInfantInfant, NewbornMale