Zaezafon, Hasan, Dad Dogman, and Killed Swede. “Correlation Between Serum-Ascites Albumin Gradient (SAAG) and Esophageal Varices in Patients With Portal Hypertension”. Tishreen University Journal -Medical Sciences Series 39, no. 4 (September 26, 2018). Accessed May 6, 2024. https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/3976.