Gill, B. U. A., J. , M. Ramzan, T. Abbas, M. Z. Zafar, and A. Javaid. “FREQUENCY OF ATRIAL FIBRILLATION IN POST OPERATIVE CORONARY ARTERY BYPASS GRAFTING SURGERY”. Pakistan Heart Journal, vol. 47, no. 3, Mar. 2018, doi:10.47144/phj.v47i3.795.