1. Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
2. Department of Orthopaedics, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
3. Department of Orthopaedics Oncology, Changzheng Hospital, Second Affiliated Hospital of Naval Medical University, Shanghai, China
4. Department of Spine Surgery, Affiliated Hospital 2 of Nantong University, Nantong University, Nantong
5. Department of Orthopaedics, Maanshan General Hospital of Ranger-Duree Healthcare, Maanshan, China