1. Orthopaedic Research Laboratory, Department of Orthopaedics, Erasmus University Rotterdam Medical Centre, Rotterdam, The Netherlands.
2. Laboratorio de Metabolismo Mineral y Óseo, Instituto de Investigación Sanitaria (IIS)–Fundación Jiménez Díaz and Instituto de Salud Carlos III (RETICEF), Madrid, Spain.
3. Grupo de Investigación de Cirugía Osteo-Articular, Instituto de Investigación Hospital Universitario La Paz (IdiPAZ), Madrid, Spain.
4. Tissue Engineering Laboratory, Skeletal Biology and Engineering Research Centre, KU Leuven, Leuven, Belgium.
5. Prometheus, Division of Skeletal Tissue Engineering, KU Leuven, Leuven, Belgium.
6. Department of Biomedical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur, Malaysia.
7. Department of Biomechanical Engineering, Delft University of Technology, Delft, The Netherlands.
8. Department of Orthopaedic Surgery and Traumatology, Hospital La Paz-IdiPaz, Universidad Autónoma de Madrid, Madrid, Spain.
9. Department of Materials Engineering, KU Leuven, Belgium.
10. Department of Orthopaedic Surgery, University Hospital RWTH, Aachen, Germany.
11. Department of Orthopaedics, Utrecht University Medical Centre, Utrecht, The Netherlands.
12. Department of Rheumatology, Utrecht University Medical Centre, Utrecht, The Netherlands.