Mai TH. Factors associated with postoperative pain among patients with upper limb fracture fixation surgery at Nghe An Trauma and Orthopedics hospital. JNS [Internet]. 22 Tháng Giêng 2025 [cited 24 Tháng Sáu 2026];8(01):72-80. Available at: https://www.jns.vn/index.php/journal/article/view/943