Khan, Muhammad Alamgir, Imran Majeed, Muhammad Mazhar Hussain, and Muhammad Aslam. “HIGH RESOLUTION ELECTROCARDIOGRAPHY”. Pakistan Journal of Physiology 1, no. 1-2 (March 31, 2005). Accessed May 2, 2025. https://www.pjp.pps.org.pk/index.php/PJP/article/view/597.