Modi JV, Godhani PH. A comparative study of umbilical port versus epigastric port for gall bladder extraction in laparoscopic cholecystectomy . Int Surg J [Internet]. 2023 Aug. 10 [cited 2025 Nov. 10];10(9):1502-6. Available from: https://www.ijsurgery.com/index.php/isj/article/view/9886