1. Department of Spine SurgeryRenji HospitalShanghai JiaoTong University School of Medicine 160 Pujian Road Shanghai 200127 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. Pharmaceutical Sciences Laboratory and Turku Bioscience CenterÅbo Akademi University Turku FI‐20520 Finland
4. Drug Research ProgramDivision of Pharmaceutical Chemistry and TechnologyFaculty of PharmacyUniversity of Helsinki Helsinki FI‐00014 Finland
5. Helsinki Institute of Life Science (HiLIFE)University of Helsinki Helsinki FI‐00014 Finland