Le, Xuan, Minh Ly Nguyen, Duy Thang Nguyen, Thanh Hoa Do, and Hai Ghi Nguyen. “Combined Nefopam-Fentanyl Use in PCA for Postoperative Analgesia in Spinal Surgery Patients: A Randomized, Controlled, Single-Blind Trial”. Anaesthesia, Pain & Intensive Care 28, no. 4 (August 8, 2024): 687-691. Accessed August 11, 2024. https://apicareonline.com/index.php/APIC/article/view/2370.