Surendhar, Dr G., Dr. Velpula Sathish, and Dr. D Surender. 2026. “Open Versus Closed Lateral Internal Anal Sphincterotomy for Chronic Anal Fissure: A Prospective Randomized Comparative Study.”. Student’s Journal of Health Research Africa 7 (3). Africa:13. https://doi.org/10.51168/sjhrafrica.v6i12.2440.