1. Department of Orthopaedics, The Third Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
2. The Second School of Clinical Medicine, Southern Medical University, Guangzhou, China
3. Department of Orthopaedics, The Seventh Medical Center of Chinese PLA General Hospital, Beijing, China
4. Department of Outpatient, The First Retired Cadre Sanitarium of Beijing Garrison in Fengtai District, Beijing, China
5. School of Clinical Medicine, The Second Military Medical University, Shanghai, China