1. Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
2. Neurogenetics Unit, Center for Molecular Medicine, Karolinska University Hospital, Stockholm, Sweden
3. National Institute for Health and Welfare, Helsinki and Oulu, Finland
4. Division of Family Medicine, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet, Stockholm, Sweden
5. University of Turku, Research Centre for Child Psychiatry, Turku, Finland