Samad, Abdul, Tariq Wahab Khanzada, and Champa Sushel. “COST EFFECTIVENESS OF TOPICAL GLYCERYL TRINITRATE VERSUS LATERAL INTERNAL SPHINCTEROTOMY FOR CHRONIC ANAL FISSURE”. Journal of Postgraduate Medical Institute 21, no. 1 (August 9, 2011). Accessed May 3, 2024. https://www.jpmi.org.pk/index.php/jpmi/article/view/139.