1. Departments of Child Neurology and General Practice University of Turku and Turku University Hospital University of Turku Turku Finland
2. Department of Neurology School of Medicine and Public Health University of Wisconsin Madison Wisconsin USA
3. Turku PET Centre University of Turku and Turku University Hospital Turku Finland
4. Division of Clinical Neurosciences University of Turku and Turku University Hospital Turku Finland
5. Department of Radiology University of Turku and Turku University Hospital Turku Finland
6. Department of Psychology Åbo Akademi University Turku Finland
7. Department of Medical Physics University of Turku and Turku University Hospital Turku Finland
8. Turku Brain and Mind Center University of Turku Turku Finland
9. Departments of Neurology, Pediatrics, Epidemiology & Population Health Montefiore Medical Center Albert Einstein College of Medicine Bronx New York USA