1. Advisium's Heeren Loo Zorggroep Amersfoort The Netherlands
2. Department of Psychiatry and Neuropsychology Maastricht University Maastricht The Netherlands
3. Emma Children's Hospital University of Amsterdam Amsterdam The Netherlands
4. Department of Genetics University of Groningen Groningen The Netherlands
5. Expertise Centre Movement Disorders Groningen University Medical Centre Groningen Groningen The Netherlands
6. Pediatrics, Department of Clinical Sciences Lund University Lund Sweden
7. Department of Neurology Maastricht University Medical Centre Maastricht The Netherlands
8. Department of Psychiatry Radoud University Medical Centre Nijmegen The Netherlands
9. Karakter child and adolescent psychiatry Nijmegen The Netherlands
10. Department of Psychiatry and Brain Center University Medical Center Utrecht Utrecht The Netherlands
11. The Dalglish Family 22q Clinic University Health Network Toronto Ontario Canada