Subramaniyan, Prabhakar, Sandhya Padmanabhan Iyer, and Amar Munoli. “Efficacy of the Risk Score for Conversion from Laparoscopic to Open Cholecystectomy in Determining the Difficulty of Laparoscopic Cholecystectomy”. International Surgery Journal 3, no. 4 (December 10, 2016): 1883–1888. Accessed October 13, 2025. https://www.ijsurgery.com/index.php/isj/article/view/114.