1. Department of Neurology; University Medical Center Groningen, University of Groningen; Groningen The Netherlands
2. Department of Genetics; University Medical Center Groningen, University of Groningen; Groningen The Netherlands
3. Department of Rehabilitation; University Medical Center Groningen, University of Groningen; Groningen The Netherlands
4. Department of Neurosurgery; University Medical Center Groningen, University of Groningen; Groningen The Netherlands