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. 4, p. 29–34, 2014. Disponível em: https://medicalresearchjournal.org/index.php/GJMR/article/view/. Acesso em: 23 oct. 2026.