คงวิบูลยวุฒิ ม., and ปุญญถาวร ส. “A 68-Year-Old Man With Abnormal Postoperative ECG”. Clinical Critical Care, vol. 18, no. 1, Mar. 2010, pp. 22-26, https://he02.tci-thaijo.org/index.php/ccc/article/view/253619.