1. Department of Orthopaedics, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin 300052, PR China
2. Key Laboratory of Immuno Microenvironment & Disease of the Educational Ministry of China, Department of Immunology, Tianjin Medical University, No. 22 Qixiangtai Road, Heping District, Tianjin 300070, PR China
3. Department of Orthopaedics, First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, No. 314 Anshanxi Road, Nankai District, Tianjin 300193, PR China
4. School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin 300071, PR China