“44. PRELIMINARY ASSESSMENT OF THE EFFECTIVENESS OF COMBINED FASCIA ILIACA BLOCK AND LOW-DOSE SPINAL ANESTHESIA IN HIP REPLACEMENT SURGERY FOR FRAIL ELDERLY PATIENTS”. 2025. Vietnam Journal of Community Medicine 66 (CĐ13- HNKH Gây mê Hồi sức). https://doi.org/10.52163/yhc.v66iCD13.3210.