Saeed, S., A. Ali, M. R. Sheikh, A. S. Memon, K. Samo, and M. Abbasi. “Significance of Ultrasonographic Common Bile Duct Dilation in Predicting Complicated Biliary Pathology: A Retrospective Study”. Journal of Liaquat University of Medical & Health Sciences, vol. 19, no. 01, Apr. 2020, pp. 12-15, http://ojs.lumhs.edu.pk/index.php/jlumhs/article/view/268.