1. Department of Pediatrics and Adolescence Medicine, Oulu University Hospital, and Research Unit of Clinical Medicine, University of Oulu , Oulu , Finland
2. Department of Child Neurology, New Children’s Hospital, University of Helsinki, Helsinki University Hospital , Helsinki , Finland
3. Department of Diagnostic Radiology, Oulu University Hospital, University of Oulu, Research Unit of Medical Imaging, Physics, and Technology, Faculty of Medicine, University of Oulu, Medical Research Center Oulu, University of Oulu , Oulu , Finland
4. Kuopio Pediatric Research Unit, University of Eastern Finland, Kuopio University Hospital , Kuopio , Finland
5. Department of Neurology, Oulu University Hospital, University of Oulu , Oulu , Finland
6. Department of Clinical Radiology, Kuopio University Hospital , Kuopio , Finland
7. Department of Pediatrics and Adolescent Medicine, Turku University Hospital, Turku University , Turku , Finland
8. Department of Pediatrics and Adolescence, Helsinki University, Helsinki University Hospital , Helsinki , Finland
9. Department of Pediatric Radiology, HUS Medical Imaging Center, Radiology, University of Helsinki, Helsinki University Hospital , Finland
10. Department of Women’s and Children’s Health, Uppsala University , Uppsala , Sweden