1. Division of Pediatric Hematology and Oncology and Stem Cell TransplantationHelsinki University Hospital and Helsinki University Helsinki Finland
2. Department of Children and AdolescentsOulu University Hospital and PEDEGO Research UnitUniversity of Oulu Oulu Finland
3. Department of Pediatrics and Adolescent MedicineTurku University Hospital and Turku University Turku Finland
4. Department of Women's and Children's HealthKarolinska Institutet Stockholm Sweden
5. Department of PediatricsTampere University Hospital Tampere Finland
6. Department of PediatricsKuopio University Hospital Kuopio Finland
7. Division of Child NeurologyHelsinki University Hospital and Helsinki University Helsinki Finland
8. Department of Radiology, Helsinki Medical Imaging CenterHelsinki University Hospital Helsinki Finland
9. Astrid Lindgren Children's HospitalKarolinska University Hospital Stockholm Sweden
10. Department of Women's and Children's HealthUppsala University Uppsala Sweden