Kaushal, Manish, Arvind Shukla, Kovarthanan P., and Yogesh Heremat Shivaprasad. 2022. “Zinc Oxide, Lidocaine, and Lateral Internal Sphincterotomy for Fissure-in-Ano: A Comparative Study”. International Surgery Journal 9 (6):1146-50. https://doi.org/10.18203/2349-2902.isj20221326.