Momtaz Tawfeek Al-Hakeem Y, Nashwan Qahtan Mahgoob P. Implementing a modified intraoperative grading system for a difficult laparoscopic cholecystectomy. Ann. coll. Med. Mosul [Internet]. 2021 Jun. 1 [cited 2025 Sep. 27];43(1):91-9. Available from: https://jwups.uomosul.edu.iq/index.php/mmed/article/view/37518