“COMPARISON OF ANALGESIC EFFICACY BETWEEN INTRAVENOUS PATIENT-CONTROLLED NEFOPAM AND KETOROLAC IN POST-CESAREAN SECTION PATIENTS AT HANOI OBSTETRICS AND GYNECOLOGY HOSPITAL FROM 2024 TO 2025 ”. 2026. Vietnam Journal of Community Medicine 67 (1). https://doi.org/10.52163/yhc.v67i1.4103.