Hyder, Syed Najam, Tahmina Kazmi, and Uzma Kazmi. “PRESENCE OF CONGENITAL HEART DISEASES IN SICK NEONATES REFERRED FOR ECHOCARDIOGRAPHY”. Pakistan Heart Journal 51, no. 4 (February 27, 2019). Accessed November 24, 2024. https://pakheartjournal1.pcs.org.pk/index.php/pk/article/view/1606.