1. Department of Plastic and Reconstructive SurgeryShanghai Ninth People's HospitalShanghai JiaoTong University School of Medicine 639 Zhi Zao Ju Road Shanghai 200011 P. R. China
2. Shanghai Key Laboratory for Prevention and Treatment of Bone and Joint DiseasesShanghai Institute of Traumatology and OrthopaedicsRuijin HospitalShanghai Jiao Tong University School of Medicine 197 Ruijin 2nd Road Shanghai 200025 P. R. China
3. Åbo Akademi University Turku FI‐20520 Finland
4. State Key Laboratory of Molecular Engineering of PolymersFudan University No. 220 Handan Road Shanghai 200433 China
5. Drug Research ProgramDivision of Pharmaceutical Chemistry and TechnologyFaculty of PharmacyUniversity of Helsinki Helsinki FI‐00014 Finland
6. Helsinki Institute of Life Science (HiLIFE)University of Helsinki Helsinki FI‐00014 Finland