Raha, Sanjay Kumar, Smriti Kana Biswas, Sorower Hossain, Md Salahuddin Rahaman, Khan Muhammad Fahim Bin Enayet, and Md Kamrul Hasan. “The Impact of Preoperative Anaemia on Early Outcomes After Off-Pump Coronary Artery Bypass Grafting”. Bangladesh Heart Journal 36, no. 1 (September 20, 2021): 47–54. Accessed December 7, 2021. https://www.banglajol.info/index.php/BHJ/article/view/55517.