Off-Pump Coronary Artery Bypass Grafting (OPCAB) at Sudan Heart Institute : Is it a Safe Operation for Coronary Revascularization in Sudan?. Global Journal of Medical Research, [S. l.], v. 14, n. I1, p. 29–34, 2014. Disponível em: https://medicalresearchjournal.org/index.php/GJMR/article/view/531. Acesso em: 23 jan. 2026.