Badr, Abd-Allah, Essam Yousef, Mostafa Kotb, and Ahmed Deebis. “Beating-Heart Versus Conventional Mitral Valve Replacement; A Randomized Clinical Trial”. The Egyptian Cardiothoracic Surgeon 2, no. 3 (July 1, 2020): 90 - 98. Accessed December 4, 2024. https://journals.escts.net/ects/article/view/137.