Mohialdeen , Fadhil A. “Is It Essential to Put a Drain in Patients With Cholecystectomy?”. Diyala Journal of Medicine 3, no. 1 (November 1, 2019): 44–50. Accessed August 19, 2025. https://djm.uodiyala.edu.iq/index.php/djm/article/view/427.