Dawood, Nauman, et al. “Diagnostic Accuracy of Serum - Ascites Albumin Gradient (SAAG) for detection of Esophageal Varices in Patients With Liver Cirrhosis ”. Pakistan Journal of Gastroenterology, vol. 41, no. 4, Oct. 2025, pp. 831-6, https://doi.org/10.63521/pjg.41.4.2025.9.