Nguyen, Sinh Hien, Minh Ngoc Nguyen, and Vu Dang Minh Pham. “Endoscopic Mitral Valve Replacement Surgery in Patients With Previous Closed Mitral Commissurotomy: A Case Series Report”. The Vietnam Journal of Cardiovascular and Thoracic Surgery 52 (August 30, 2025): 197 - 206. Accessed April 22, 2026. https://vjcts.vn/index.php/vjcts/article/view/1511.