Raheel Azhar, Aabya Salim, Raazia Ramzan, Areeba Mahmood, Saad Aslam, Sidra Riaz. 2023. “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 (11):586. https://doi.org/10.53350/pjmhs20221611586.