Pratt, J. W., R. E. Michler, J. Pala, and D. A. Brown. “Minimally Invasive Coronary Artery Bypass Grafting for Myocardial Muscle Bridging”. The Heart Surgery Forum, vol. 2, no. 3, June 1999, pp. E250-253, https://journal.hsforum.com/index.php/HSF/article/view/6353.