Noophun, Phadet. “Upper gastrointestinal bleeding in Surin Hospital : a retrospective study”. MEDICAL JOURNAL OF SISAKET SURIN BURIRAM HOSPITALS 22, no. 3 (August 6, 2019): 397–408. accessed September 24, 2026. https://he02.tci-thaijo.org/index.php/MJSSBH/article/view/207619.