Akbar, Waleed, Asad Sami, Sohaib Haider, Munazzah Aziz, Atiq ur Rehman, and Khalil Ur-Rehman. 2024. “Comparison of Postoperative Pain in Open Hemorrhoidectomy With and Without Lateral Internal Sphincterotomy”. Pakistan Journal of Medical Research 63 (3):147-51. https://www.pjmr.org.pk/index.php/pjmr/article/view/757.