1. Department of Special Needs Education, University of Oslo, Oslo, Norway
2. Department of Clinical Neurosciences for Children, Oslo University Hospital, Oslo, Norway
3. The Faculty of Medicine, Institute of Clinical Medicine, University of Oslo, Oslo, Norway
4. Department of Pediatric Research, Oslo University Hospital, Oslo, Norway
5. Department of Pediatrics, Oslo University Hospital, Oslo, Norway
6. Department of Psychology, University of Oslo, Oslo, Norway
7. Department of Oncology, Oslo University Hospital, Oslo, Norway
8. Section for Cancer Cytogenetics, Institute for Cancer Genetics and Informatics, Oslo University Hospital, Oslo, Norway
9. Centre for Cancer Biomedicine, Faculty of Medicine, University of Oslo, Oslo, Norway