Goksel, Onur S., Kaan Inan, Tolga Tatar, Alper Ucak, Gokhan Arslan, Melih Us, and Ahmet T. Yilmaz. “Mitral Valve Replacement With Bileaflet Preservation for Complex Annular Calcification”. The Heart Surgery Forum 11, no. 1 (February 12, 2008): E1-E3. Accessed March 28, 2024. https://journal.hsforum.com/index.php/HSF/article/view/363.