1. Department of Orthopedic Surgery, the Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou City, Zhejiang Province, PR China.
2. Orthopedics Research Institute of Zhejiang University, Hangzhou City, Zhejiang Province, PR China.
3. Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, Hangzhou City, Zhejiang Province, PR China.
4. School of Material Science and Engineering, University of New South Wales, Sydney 2052, Australia.