Shah SMA, Ullah I, Khan MG, Ullah N, Malik A, Khan RA. FREQUENCY OF COMPLETE HEART BLOCK AFTER SURGICAL CLOSURE OF PERIMEMBRANOUS VENTRICULAR SEPTAL DEFECT. J Postgrad Med Inst [Internet]. 2016 Jan. 3 [cited 2024 Dec. 19];29(4). Available from: https://jpmi.org.pk/index.php/jpmi/article/view/1759