“Effect of Coronary Collateral Circulation on Preoperative and Postoperative QT Dispersion in Patients Undergoing Coronary Artery Bypass Grafting. ”, Ann Med Res , vol. 14, no. 1, May 2021, Accessed: Mar. 13, 2025. [Online]. Available: http://annalsmedres.org/index.php/aomr/article/view/3149