Rezk, Moataz, Ashraf Wahdan, Mahmoud Mubarak, Mamdouh Mohamed, and Mohammed Elgazzar. 2021. “Comparative Study Between Custodiol® Versus Cold Blood Cardioplegia for Myocardial Protection in Double Valve Replacement Surgery”. The Egyptian Cardiothoracic Surgeon 3 (4), 108 -13. https://doi.org/10.35810/ects.v3i4.193.