Yasuda, Tamotsu, Go Watanabe, and Shigeyuki Tomita. “A Novel Figure A-Shape Sternal Retractor for Off-Pump Coronary Artery Bypass Grafting”. The Heart Surgery Forum 8, no. 4 (June 3, 2005): E196-E197. Accessed March 28, 2024. https://journal.hsforum.com/index.php/HSF/article/view/1103.