Gupta, Gaurav, Pranav Kumar Sharma, Sangita Gupta, and Ankit Bhardwaj. “Pre and Per Operative Prediction of Difficult Laparoscopic Cholecystectomy Using Clinical and Ultrasonographic Parameters”. International Journal of Research in Medical Sciences 3, no. 11 (January 16, 2017): 3342–3346. Accessed October 15, 2025. https://www.msjonline.org/index.php/ijrms/article/view/1910.