Abicht, Jan-Michael, Andres Beiras-Fernandez, Dominik Bengel, and Calin Vicol. “Deep Pericardial Traction Suture Versus Vacuum-Assisted Apical Suction to Expose the Posterior Wall of the Heart in Off-Pump Coronary Artery Bypass: A Prospective, Randomized Study”. The Heart Surgery Forum 15, no. 4 (August 23, 2012): E224-E231. Accessed April 19, 2024. https://journal.hsforum.com/index.php/HSF/article/view/441.