Periaswamy, G., Pudhiavan A, N. Christopher, K. Guthikonda, V. Kasi, and M. Cherian. “Congenital Portosystemic Shunt: An Under-Recognized Cause of Pulmonary Arterial Hypertension”. Asian Journal of Medical Radiological Research, Vol. 10, no. 1, June 2022, pp. 14-17, https://aijournals.com/index.php/ajmrr/article/view/2359.