Sarkar, U. K., A. Chatterjee, S. Basu, A. Pan, and S. Periwal. “Echocardiographic Evaluation of Simple Versus Complex Congenital Heart Disease in a Tertiary Care Paediatrics Hospital”. Journal of College of Medical Sciences-Nepal, vol. 13, no. 3, Oct. 2017, pp. 327-9, doi:10.3126/jcmsn.v13i3.18404.