Sehar, Tayyaba, Abdul Sheikh, and Asma Kanwal. “TO IDENTIFY PATTERN OF CONGENITAL HEART DISEASES IN A NEWLY DEVELOPED TERTIARY CARE UNIT”. Pakistan Armed Forces Medical Journal 69, no. 4 (August 27, 2019): 831-36. Accessed July 9, 2020. https://pafmj.org/index.php/PAFMJ/article/view/3209.