Zubair, M uhammad, Muhammad Ashfaq, Shabbir Hussain, Mahmood Alam, and Hassanul Banna Ghazi. “Permanent Pacemaker Implantation: An Analysis of 147 Cases”. Pakistan Heart Journal 20, no. 2 (September 14, 2012). Accessed November 24, 2024. https://pakheartjournal.com/index.php/pk/article/view/341.