Akhtar, M. S., Butt, M. Q., Razzaq, S., Usman, S., & Akhtar, M. U. (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