1. Department of Joint Surgery, Affiliated Traditional Chinese Medicine Hospital of Southwest Medical University, Luzhou, Sichuan, China (mainland)
2. School of Materials and Energy, Southwest University; Southwest University Hospital, Chongqing, China (mainland)
3. Sichuan Provincial Ba-Yi Rehabilitation Center (Sichuan Provincial Rehabilitation Hospital), Chengdu, Sichuan, China (mainland)
4. Division of Spine Surgery, Department of Orthopedic Surgery, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing, Jiangsu, China (mainland)