Dang PN, Nguyen VL, Su QK, et al. PREVALENCE OF HELICOBACTER PYLORI INFECTION AND OUTCOMES OF LAPAROSCOPIC REPAIR FOR PERFORATED PEPTIC ULCERS IN ELDERLY PATIENTS IN DONG THAP. CTJUMP. 2026;(102):195-201. doi:10.58490/ctjump.2026i102.4443