1. NevSom ‐ Norwegian Centre of Expertise for Neurodevelopmental Disorders and Hypersomnias Oslo University Hospital Norway
2. Specialized Habilitation Service, Nordmøre and Romsdal, Møre and Romsdal Hospital Trust Norway
3. Department of Østmarka, Habilitation Services St. Olavs Hospital Norway
4. Specialized Habilitation Service, Sunnmøre, Møre and Romsdal Hospital Trust Norway
5. Department of Mental Health, Regional Section Autism and Intellectual Disability Mental Health Helse Fonna Hospital Trust Norway
6. Department of Research and Innovation/Department of Mental Health, Regional Section Autism and Intellectual Disability Mental Health Helse Fonna Hospital Trust Norway
7. Psychiatric Resource Team, Nordland Hospital Trust Norway
8. Regional Section Mental Health, Intellectual Disabilities/Autism and NevSom—Norwegian Centre of Expertise for Neurodevelopmental Disorders and Hypersomnia Oslo University Hospital Norway
9. Department of Psychiatry, Section Intellectual Disability and Autism Vestre Viken Hospital Trust Norway
10. Department of Psychiatry, Section Specialized Habilitation Nord‐Trøndelag Hospital Trust Norway
11. Department of Psychiatry Section Intellectual Disability and Autism, Vestre Viken Hospital Trust Norway
12. Department of Psychology King's College LondonInstitute of Psychiatry, Psychology and Neuroscience London UK