M. A. Muazzam, S. M. Hussain, and M. T. A. Qureshi, “ANATOMICAL VARIATIONS OF EXTRA HEPATIC BILIARY SYSTEM IN PATIENTS UNDERGOING LAPAROSCOPIC CHOLECYSTECTOMY IN CMH & PEMH RAWALPINDI”, PAFMJ, vol. 71, no. 3, pp. 916–19, Jun. 2021.