Younas, Muhammad, and Ahsan Beg. “PATENT DUCTUS ARTERIOSUS DEVICE OCCLUSION IN YOUNG CHILDREN LESS THAN 12 KG- IMMEDIATE RESULTS AND COMPLICATIONS”. Pakistan Heart Journal 47, no. 4 (March 18, 2015). Accessed November 24, 2024. https://pakheartjournal1.pcs.org.pk/index.php/pk/article/view/823.