Bilal, M.B. Y, S. A. Ahmed, Nasim Riaz, Inam Ullah, M. A. Hashmi, M. Ashiq, M. R. Kiani, and M. Yusuf. “Perforated Peptic Ulcer After Coronary Bypass Grafting, Two Case Reports”. Pakistan Heart Journal 26, no. 1-2 (August 7, 2012). Accessed November 23, 2024. https://pakheartjournal.com/index.php/pk/article/view/238.