1. Orthopaedic Research Laboratories, Department of Orthopaedic SurgeryStanford University School of MedicineStanford California
2. Department of Medicine, ClinicumUniversity of Helsinki and Helsinki University HospitalHelsinki Finland
3. Translational Immunology Research ProgramUniversity of HelsinkiHelsinki Finland
4. ORTON Orthopaedic Hospital of the Orton FoundationHelsinki Finland
5. Department of RheumatologyUniversity of Helsinki and Helsinki University HospitalHelsinki Finland
6. Department of BioengineeringStanford UniversityStanford California