Shrestha, M., U. Shakya, P. Sharma, S. Shah, S. Aryal, A. Shakya, S. Rajbhandari, V. KC, K. R. Thapa, and C. M. Adhikari. “Is Two Dimensional Echocardiography Sufficient for Selection of Device for Successful Transcatheter Closure of Patent Ductus Arteriosus in Children?”. Nepalese Heart Journal, vol. 18, no. 2, Nov. 2021, pp. 45-48, doi:10.3126/njh.v18i2.40404.