Bari, M. E. U., M. A. . Salam Arif, F. Quader, M. N. . Sobhani, and A. M. . Hossain Tuhin. “Scope of Laparoscopic Cholecystectomy in Patients With Previous Upper Abdominal Surgery”. Anwer Khan Modern Medical College Journal, vol. 12, no. 1, Mar. 2023, pp. 11-15, doi:10.3329/akmmcj.v12i1.64622.