1. Department of Sports and Exercise Medicine University Medical Center Groningen, University of Groningen Groningen The Netherlands
2. Department of Health Sciences, Community and Occupational Medicine University Medical Center Groningen, University of Groningen Groningen The Netherlands
3. Department of Orthopedics University Medical Center Groningen, University of Groningen Groningen The Netherlands
4. Center for Human Movement Sciences University Medical Center Groningen, University of Groningen Groningen The Netherlands