1. Department of Women's and Children's Health Uppsala University Uppsala Sweden
2. Department of Women's and Children's Health Karolinska Institutet Stockholm Sweden
3. Department of Special Education Stockholm University Stockholm Sweden
4. School of Public Health and Community Medicine, Institute of Medicine, Sahlgrenska Academy University of Gothenburg Gothenburg Sweden
5. Region Västra Götaland Gothenburg Sweden
6. Paediatric Oncology Karolinska University Hospital Stockholm Sweden