Rehman, Muhammad Abdur, Ikram Ullah Khan, and Muhammad Sadiq Shah. “Clinical Features and Endoscopic Findings in Peptic Ulcer”. Journal of Postgraduate Medical Institute 12, no. 1 (September 8, 2011). Accessed March 29, 2024. https://www.jpmi.org.pk/index.php/jpmi/article/view/600.