., S., S. N. Masanashetty, S. S., and D. M. “Can Difficulties in Laparoscopic Cholecystectomy Be Anticipated Preoperatively: Evaluation of a Scoring System”. International Surgery Journal, vol. 7, no. 4, Mar. 2020, pp. 1199-03, doi:10.18203/2349-2902.isj20201397.