V Arom, K., R. W. Emery, T. F. Flavin, and R. J. Petersen. “Cost-Effectiveness of Minimally Invasive Coronary Artery Bypass Surgery”. The Thai Journal of Surgery, vol. 20, no. 3, Sept. 1999, pp. 81-88, https://he02.tci-thaijo.org/index.php/ThaiJSurg/article/view/247883.