1. Department of Bone and Joint Surgery Department of Orthopedics Renji Hospital Shanghai Jiao Tong University School of Medicine 145 Shandong Middle Road Shanghai 200001 P. R. China
2. Pharm‐X Center Engineering Research Center of Cell & Therapeutic Antibody Ministry of Education School of Pharmacy Shanghai Jiao Tong University Shanghai 200240 P. R. China
3. Department of Plastic and Reconstructive Surgery The Ohio State University Columbus OH 43210 USA
4. School of Medical Science and Engineering Beihang University Beijing 100191 P. R. China
5. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials College of Materials Science and Engineering Donghua University Shanghai 201620 P. R. China