1. Center of Excellence for Rehabilitation Medicine, Brain Center Rudolf Magnus University Utrecht and De Hoogstraat Rehabilitation, Utrecht, the Netherlands
2. University of Groningen, University Medical Center Groningen, Department of Rehabilitation Medicine, Groningen, the Netherlands
3. Department of Research and Development, Heliomare Rehabilitation Center, Wijk aan Zee, the Netherlands
4. De Hoogstraat Rehabilitation, Utrecht, the Netherlands
5. Heliomare, Wijk aan Zee, the Netherlands
6. Coronel Institute for Occupational Health, Academic Medical Center, University of Amsterdam, Amsterdam, the Netherlands