1. Department of Orthopedics, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, P. R. China
2. Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, P. R. China
3. Department of Orthopedics, China-Japan Union Hospital of Jilin University, 126 Xiantai Street, Changchun 130033, P. R. China
4. Jilin Biomedical Polymers Engineering Laboratory, 5625 Renmin Street, Changchun 130022, P. R. China
5. Academy of Translational Medicine, The First Hospital of Jilin University, 71 Xinmin Street, Changchun 130021, P. R. China