Warinsirikul, Wiwat, Pirapat Mokarapong, Surapot Sangchote, Sant Chaiyodsilp, and Supreecha Tanamai. 2000. “Durability of Mitral Value Repair With Self-Made Annuloplasty Rings”. The Thai Journal of Surgery 21 (2):41-46. https://he02.tci-thaijo.org/index.php/ThaiJSurg/article/view/243349.