Zim, H. Z., Bar, D., Sarker, A. K., & Sultana, S. (2020). Early Outcome of Open versus Closed Lateral Internal Anal Sphincterotomy in the Treatment of Chronic Anal Fissure. Journal of Surgical Sciences, 22(1), 52–57. https://doi.org/10.3329/jss.v22i1.44027