1. Department of Orthopaedic Surgery and Traumatology Zuyderland Medical Center Heerlen Heerlen The Netherlands
2. Department of Health Services Research Care and Public Health Research Institute (CAPHRI)Maastricht University Maastricht The Netherlands
3. Department of Orthopaedics Maastricht University Medical Center Maastricht The Netherlands
4. School of Health Professions Education (SHE) Maastricht University Maastricht The Netherlands