Muhammad Waqas Raza, Aurangzeb Khan , Raja Atif Kamran, Khurram Waqas , Azam Yusuf. 2013. “Haemorrhoidectomy With and Without Lateral Internal Sphinterotomy”. Journal of Rawalpindi Medical College 17 (2). https://journalrmc.com/index.php/JRMC/article/view/448.