1. Advisium, 's Heeren Loo Amersfoort The Netherlands
2. The Dalglish Family 22q Clinic University Health Network Toronto Ontario Canada
3. Department of Psychiatry & Neuropsychology Maastricht University Maastricht The Netherlands
4. Department of Genetics University Medical Center Utrecht Utrecht The Netherlands
5. Department of Pediatrics Emma Children's Hospital, Amsterdam University Medical Center Amsterdam The Netherlands