Mir, S. A., Z. G. Lone, W. A. Dar, and M. Wani. “Is Open Lateral Anal Sphincterotomy Really a Safe and Satisfactory Treatment Option for Refractory Chronic Anal Fissures? - a Prospective Study”. International Journal of Research in Medical Sciences, vol. 7, no. 6, May 2019, pp. 2307-11, doi:10.18203/2320-6012.ijrms20192518.