1. School
of Materials Science and Engineering, Tianjin Key Laboratory of Composite
and Functional Materials, Tianjin University, Tianjin 300352, China
2. Research
Center for Human Tissue and Organs Degeneration, Institute Biomedical
and Biotechnology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen 518055, China
3. Department
of Orthopaedic and Traumatology, The University of Hong Kong, 21 Sassoon
Road, Pokfulam, Hong Kong, China