1. Regional Resource Centre for Autism, ADHD, Tourette’s syndrome and Narcolepsy , Division of Paediatric and Adolescent Medicine, Oslo University Hospital , Oslo , Norway
2. Department of Educational Science University of Southeastern , Oslo , Norway
3. Department of family and upbringing, Ringerike municipality, Ringerike , Oslo , Norway
4. Unit on Mental Health in Intellectual Disabilities Division of Mental Health and Addiction, Norwegian National Advisory, Oslo University Hospital , Oslo , Norway