Doppler Ultrasound Detection and Grading of Portal Vein Thrombosis in Patients with Liver Cirrhosis: Results from a Cross-Sectional Study, Abbottabad. L&S [Internet]. 2025 Oct. 8 [cited 2026 Oct. 18];6(4):07. Available from: https://www.lifenscience.org/index.php/life-and-science/article/view/973