DIAGNOSTIC ACCURACY OF PORTAL VEIN DUPLEX DOPPLER SONOGRAPHY IN ASSESSING LIVER CIRRHOSIS SEVERITY: A CROSS-SECTIONAL STUDY KEEPING LIVER BIOPSY AS REFERENCE STANDARD. RMSR. 2025;3(7):2037-2046. Accessed October 30, 2026. https://medicalsciencereview.com/index.php/Journal/article/view/2049