Estrella, M. L. T., C. J. M. Quintero, J. A. R. Sánchez, and A. M. R. Zavala. “Ectopic Duodenal Varices As a Rare Cause of Bleeding”. British Journal of Healthcare and Medical Research, vol. 12, no. 01, Feb. 2025, pp. 216-23, doi:10.14738/bjhmr.1201.18248.