1. Division of Paediatric Neurology, Department of Women’s and Children’s Health, Karolinska Institutet, 171 76 Stockholm, Sweden
2. Astrid Lindgren Childrens Hospital, Karolinska University Hospital, 171 76 Stockholm, Sweden
3. Medical Statistics Unit, Department of Learning, Informatics, Management and Ethics, Karolinska Institutet, 171 77 Stockholm, Sweden
4. Independent Researcher, 507 60 Borås, Sweden
5. Centre for Clinical Research, Uppsala University—Region Västmanland, 721 89 Västerås, Sweden