Sirisunhirun, Pavapol. “Factors associated with mortality among patients admitted to King Narai Hospital due to acute upper gastrointestinal bleeding”. Journal of Medicine and Health Sciences 31, no. 1 (April 30, 2024): 1–18. accessed September 19, 2026. https://he01.tci-thaijo.org/index.php/jmhs/article/view/268803.