“Off-Pump Coronary Artery Bypass Grafting (OPCAB) at Sudan Heart Institute : Is it a Safe Operation for Coronary Revascularization in Sudan?” (2014) Global Journal of Medical Research, 14(I1), pp. 29–34. Available at: https://medicalresearchjournal.org/index.php/GJMR/article/view/531 (Accessed: 23 January 2026).