Zghal, F. M., M. B. Halima, B. Rekik, A. Bonkano, A. Farhati, S. Ouali, S. Boudiche, and M. S. Mourali. “Left Ventricular Outflow Tract Obstruction After Mechanical Mitral Valve Replacement”. Research Trends and Challenges in Medical Science Vol. 4, July 2020, pp. 13-19, https://stm1.bookpi.org/index.php/rtcms-v4/article/view/1797.