Khan, Zahoor Ahmad, Hameed Ullah, Shahab Ullah, and Zahid Aslam Awan. “ISCHEMIC HEART DISEASE IN PATIENTS WITH HEART BLOCKS REQUIRING PERMANENT PACEMAKER”. Journal of Postgraduate Medical Institute 31, no. 2 (May 12, 2017). Accessed March 28, 2024. https://jpmi.org.pk/index.php/jpmi/article/view/1983.