Potnis, Abhishek Rajendra, et al. “Do Post-Operative Electrocardiographic (ECG) Changes Indicate Any Underlying Graft Problem After CABG? Correlation of Early Post-Operative ECG Changes With CT Coronary Angiography (CTCA)”. Cardiology and Cardiovascular Medicine, vol. 7, no. 3, June 2023, pp. 162-8, https://fortunejournals.org/ojs/index.php/ccm/article/view/16408.