Hirose, Hitoshi, Atsushi Amano, and Akihito Takahashi. “Minimally Invasive Direct Coronary Artery Bypass: Current Experience”. The Heart Surgery Forum 6, no. 6 (February 7, 2005): E129-E132. Accessed March 28, 2024. https://journal.hsforum.com/index.php/HSF/article/view/1078.