1. Department of Orthopaedic Trauma, Beijing Jishuitan Hospital, Beijing, China
2. Department of Anesthesiology, Beijing Jishuitan Hospital, Beijing, China
3. Department of Orthopaedic Trauma, The Third Hospital of Hebei Medical University, Shijiazhuang, China
4. Department of Orthopaedics, Shanghai Tenth People’s Hospital, Shanghai, China
5. Department of Orthopaedics, Taizhou Hospital of Zhejiang Province, Taizhou, China
6. Department of Orthopaedics, Tianjin Hospital, Tianjin, China
7. Department of Orthopaedics, The General Hospital of Shenyang Military Command, Shenyang, China
8. Department of Orthopaedics, Peking University BinHai Hospital, Tianjin, China
9. Department of Orthopaedics, Huizhou Third People’s Hospital, Huizhou, China
10. Department of Orthopaedics, Beijing Shunyi District Hospital, Beijing, China
11. Department of Orthopaedics, Beijing Hospital, Beijing, China
12. Department of Orthopaedics, Shanghai Pudong Hospital, Fudan University Pudong Medical Center, Shanghai, China
13. Department of Orthopaedics, The First Hosptial of Fangshan District, Beijing, China
14. Department of Orthopaedics, Shengjing Hospital, China Medical University, Shenyang, China
15. Department of Orthopaedics, The Second Hospital of Fuzhou, Fuzhou, China
16. Department of Orthopaedics, Quanzhou Orthopaedic Traumatological Hospital, Quanzhou, China
17. Department of Orthopaedics, Liangxiang Teaching Hospital, Capital Medical University, Beijing, China
18. Department of Orthopaedics, Beijing Friendship Hospital, Capital Medical University, Beijing, China
19. Department of Orthopaedics, Zhengzhou Orthopaedics Hospital, Zhengzhou, China
20. Department of Nurtrition, Beijing Jishuitan Hospital, Beijing, China