Hasan, Md. Sharif, Masoom Siraj, Hamidur Rahman, and Md. Nurul Amin. “Outcome of Coronary Artery Bypass Graft Surgery With Low Preoperative Ejection Fraction”. Ibrahim Cardiac Medical Journal 1, no. 2 (January 30, 2013): 20–23. Accessed November 24, 2024. https://banglajol.info/index.php/ICMJ/article/view/13547.