Omara, M.M.A.M., Wahdan, A.M.E., Elgazzar, M.A. and Rezk, M.E. 2020. On-Pump versus Off-Pump Coronary Artery Bypass Grafting in The Surgical Management of High-Risk Patients, A Clinical Randomized Study. The Egyptian Cardiothoracic Surgeon. 2, 1 (Jan. 2020), 15 - 20. DOI:https://doi.org/10.35810/ects.v2i1.110.