1. PEDEGO Research Unit, University of Oulu, Oulu, Finland;
2. Medical Research Center, University of Oulu and Oulu University Hospital, Oulu, Finland;
3. Biocenter Oulu, University of Oulu, Oulu, Finland;
4. Department of Molecular Medicine and Surgery, Center of Molecular Medicine, Karolinska Institutet, Stockholm, Sweden;
5. Department of Clinical Genetics, Karolinska University Hospital, Stockholm, Sweden;
6. Department of Clinical Genetics and
7. Department of Children and Adolescents, Oulu University Hospital, Oulu, Finland;
8. Clinical Research Center, Department of Laboratory Medicine, Karolinska Institutet, Huddinge, Sweden; and
9. Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden