1. Department of Clinical Chemistry and Transfusion Medicine; Institute of Biomedicine, Sahlgrenska Academy at University of Gothenburg; Gothenburg Sweden
2. Childhood Cancer Research Unit, Department of Women and Child Health; Astrid Lindgren Children's Hospital; Stockholm Sweden
3. Department of Women's and Children's Health; Institute of Paediatric; Uppsala Sweden
4. Department of Medical Biosciences; Clinical Genetics, Umeå University; Umeå Sweden
5. Department of Medical Biosciences; Pathology; Umeå University; Umeå Sweden
6. Department of Paediatrics; University Hospital Linköping; Linköping Sweden
7. Department of Pediatrics; Skåne University Hospital, Lund University; Lund Sweden
8. Department of Clinical Genetics; University and Regional Laboratories, Lund University; Lund Sweden
9. Department of Woman and Child Health; Karolinska Institute; Stockholm Sweden
10. Department of Pediatrics; Institute of Clinical Sciences, Sahlgrenska Academy at University of Gothenburg; Gothenburg Sweden