1. Department of Spinal Surgery, Hong Hui Hospital, Xi’an Jiao Tong University, Xi’an, Shaanxi, China (mainland)
2. Department of Emergency Medicine, Hong Hui Hospital, Xi’an Jiao Tong University, Xi’an, Shaanxi, China (mainland)
3. Department of Orthopedics, Hong Hui Hospital, Xi’an Jiao Tong University, Xi’an, Shaanxi, China (mainland)