Affiliation: | [1]Academy for Advanced Interdisplinary Studies, Peking University, Beijing 100871. China; [2]College of Engineering, Peking University, Beijing 100871, China; [3]Department of Orthopaedics, Shanghai Sixth People's Hospital, Shanghai Jiaotong University, Shanghai 200233, China; [4]Institute of Bio-engineering and Information Technology Materials, School of Materials Science and Engineering,Tongji University, Shanghai 200092, China |