1. Department of Orthopedic Surgery and Trauma, Máxima Medical Center, Eindhoven, the Netherlands
2. Department of Orthopedic Surgery, Radboud University Medical Center, Nijmegen, the Netherlands
3. Department of Orthopedic Surgery, Catharina Hospital Eindhoven, Eindhoven, the Netherlands
4. Department of General Practice, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands
5. Department of Orthopedic Surgery, Erasmus MC, University Medical Center Rotterdam, Rotterdam, the Netherlands