Barua, Chaity, Sunam Kumar Barua, Md Zahid Hossain, and Tahmina Karim. “Pulmonary Hypertension in Children With Congenital Left to Right Cardiac Shunt Anomalies”. Chattagram Maa-O-Shishu Hospital Medical College Journal 14, no. 2 (November 16, 2015): 31–37. Accessed September 18, 2021. https://www.banglajol.info/index.php/CMOSHMCJ/article/view/25714.