Nadeem, S., S. Wasim, S. Manzoor, H. Ata, R. Raja, and S. Arooj. “Diagnostic Accuracy of Hepatic Vein Resistive Index in Detection of Hepatic Fibrosis in Patients of Chronic Liver Disease”. Journal of Rawalpindi Medical College, Vol. 24, no. 3, Sept. 2020, pp. 278-82, doi:10.37939/jrmc.v24i3.1482.