1. Department of Women’s and Children’s Health, Karolinska Institutet, Stockholm, Sweden
2. Astrid Lindgren Children’s Hospital, Karolinska University Hospital, Stockholm, Sweden
3. Department of Medical Sciences, Haematology, Uppsala University, Uppsala, Sweden
4. HUS Comprehensive Cancer Center, Helsinki University Area Hospitals, Helsinki, Finland
5. Department of Clinical and Molecular Medicine, Faculty of Medicine and Health Sciences, Norwegian University of Science and Technology, Trondheim, Norway
6. Department of Pediatrics and Adolescent Medicine, University Hospital Rigshospitalet, Copenhagen, Denmark
7. Hematology, Oncology and Transfusion Medicine Center, Vilnius, Lithuania
8. Haematology Centre, North Estonia Medical Centre, Tallinn, Estonia
9. Department of Haematology, Copenhagen University Hospital Rigshospitalet, Copenhagen, Denmark
10. Department of Women’s and Children’s Health, Uppsala University, Uppsala, Sweden