Akhtar, Muhammad Salim, Muhammad Qasim Butt, Samiya Razzaq, Sadaf Usman, and Muhammad Usman Akhtar. 2018. “COMPARISON OF LATERAL ANAL SPHINCTEROTOMY WITH 0.2% GTN IN CHRONIC ANAL FISSURE: Lateral Anal Sphincterotomy in Chronic Anal Fissure”. Pakistan Armed Forces Medical Journal 68 (3):491-96. https://pafmj.org/PAFMJ/article/view/285.