1. Stichting Omega Amsterdam The Netherlands
2. Department of Inclusive and Special Needs Education University of Groningen Groningen The Netherlands
3. Department of Rehabilitation Medicine University of Groningen University Medical Center Groningen Groningen The Netherlands
4. Rehabilitation Center ‘Revalidatie Friesland’ Heerenveen The Netherlands
5. Rehabilitation Center ‘Revalidatie Friesland’ Beetsterzwaag The Netherlands