A. M. Farid, “Serum Serotonin and Noninvasive Portal Hypertension Indices in Relation to Esophageal Variceal Severity in Cirrhosis: An Exploratory Cross-Sectional Study”, J Clin Med Res, vol. 18, no. 11, pp. 823–834, Jan. 2026, doi: 10.14740/jocmr6742.