Rajbhandari, Sujeeb, Man KC, Roshan Raut, Murari Dhungana, and Kunal Shaha. “(Retracted) Cardiac Resynchronization Therapy for Heart Failure”. Journal of Advances in Internal Medicine 1, no. 2 (July 23, 2012): 65-68. Accessed May 16, 2021. https://www.nepjol.info/index.php/JAIM/article/view/6528.