Varshney PM, Ray MS, Nagyan T, Malhi SS, Thakore DH, Modi NA, Gupta S. Comparative study of unilateral subcutaneous internal anal sphincterotomy and 02% diltiazem local application in acute fissure in ano: a study of 40 patients over 01 year. Int Surg J [Internet]. 2021 Jan. 29 [cited 2026 Feb. 20];8(2):530-5. Available from: https://www.ijsurgery.com/index.php/isj/article/view/7146