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