Raheel Azhar, Aabya Salim, Raazia Ramzan, Areeba Mahmood, Saad Aslam, Sidra Riaz. “A Comparative Study of Lateral Sphincterotomy Vs Topical Application of Glyceryl Trinitrate 0.2% in the Treatment of Chronic Anal Fissure an Observational Study”. Pakistan Journal of Medical & Health Sciences 16, no. 11 (January 9, 2023): 586. Accessed September 19, 2024. https://mail.pjmhsonline.com/index.php/pjmhs/article/view/3478.