1 K. G. Jebsen Centre for Neurodevelopmental Disorders, Oslo, Norway. t.j.johannessen@medisin.uio.no.
2 NevSom, Department of Rare Disorders, Oslo University Hospital, Oslo, Norway. t.j.johannessen@medisin.uio.no.
3 K. G. Jebsen Centre for Neurodevelopmental Disorders, Oslo, Norway.
4 NevSom, Department of Rare Disorders, Oslo University Hospital, Oslo, Norway.
5 Division of Mental Health and Addiction, Vestre Viken Hospital Trust, Drammen, Norway.
6 Department of Special Needs Education, University of Oslo, Oslo, Norway.
7 Department of Medical Genetics, Oslo University Hospital, Oslo, Norway.
8 Institute of Clinical Medicine, Campus Ahus, University of Oslo, Oslo, Norway.
9 Department of Adult Habilitation, Akershus University Hospital, Nordbyhagen, Norway.
10 NORMENT, Department of Clinical Science, University of Bergen, Bergen, Norway.
11 Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Faculty of Medicine Mannheim, University of Heidelberg, Heidelberg, Germany.
12 NORMENT, Institute of Clinical Medicine, University of Oslo, Oslo, Norway.
13 Division of Mental Health and Addiction, Oslo University Hospital, Oslo, Norway.