Tudu, Debananda, and Bana Bihari Mishra. “Prediction of Difficult Cholecystectomy, a Study of 100 Cases”. International Journal of Research in Medical Sciences 7, no. 1 (December 26, 2018): 63–66. Accessed April 29, 2025. https://www.msjonline.org/index.php/ijrms/article/view/5249.