20. PREOPERATIVE ANXIETY AMONG PATIENTS UNDERGOING ELECTIVE SURGERY AT THE DEPARTMENT OF ANESTHESIOLOGY AND INTENSIVE CARE, TRANSPORT HOSPITAL. YHCĐ 2026, 66 (CĐ14-HNKH BV Giao thông Vận tải). https://doi.org/10.52163/yhc.v66iCD14.3073.