1. Department of Bone and Joint Surgery, Department of Orthopedics, Renji Hospital, School of Medicine Shanghai Jiaotong University Shanghai 200127 China
2. Department of Plastic & Reconstructive Surgery The Ohio State University Columbus OH 43210 USA
3. School of Medical Science and Engineering Beihang University Beijing 100191 China
4. Engineering Research Center of Cell & Therapeutic Antibody Ministry of Education School of Pharmacy Shanghai Jiao Tong University Shanghai 200240 China