PERFORMANCE OF THE BLATCHFORD SCORE IN PREDICTING OUTCOMES OF UPPER GASTROINTESTINAL BLEEDING DUE TO PEPTIC ULCER DISEASE IN THE EMERGENCY DEPARTMENT, DUC GIANG GENERAL HOSPITAL, 2025. YHCĐ. 2026;67(CĐ3-NCKH). doi:10.52163/yhc.v67iCD3.4722