1. Beijing Laboratory of Biomedical Materials
2. Beijing University of Chemical Technology
3. Beijing 100029, PR China
4. Centre for Biomaterials and Tissue Engineering
5. University of Sheffield
6. Sheffield, UK
7. School of Engineering, Design & Technology
8. University of Bradford
9. Bradford, UK
10. Laboratory of Bone Tissue Engineering of Beijing Research Institute of Traumatology and Orthopaedics
11. Beijing 100035, China