N. Rajbhandari, S. Sharma Parajuli, A. Thakur, and A. Dahal, “Improvement of Ejection Fraction in Patients undergoing Coronary Artery Bypass Grafting with Impaired Left Ventricular Function”, Kathmandu Univ. Med. J., vol. 19, no. 1, pp. 76–79, Mar. 2021.