1. Department of Paediatrics and Adolescent Medicine Aarhus University Hospital Aarhus Denmark
2. Department of Clinical Medicine Aarhus University Aarhus Denmark
3. Center of Pediatric Oncology and Hematology Vilnius University Hospital Santaros Klinikos and Vilnius University Vilnius Lithuania
4. Institute of Clinical Sciences Gothenburg University Gothenburg Sweden
5. Department of Hematology Haukeland Universitetssjukehus Bergen Norway
6. Department of Pediatric and Adolescent Medicine Turku University Hospital Turku Finland
7. Department of Hematology and Oncology Tallinn Children's Hospital Tallinn Estonia
8. Erytech Cambridge Massachusetts USA
9. Department of Pediatrics and Adolescent Medicine, Rigshospitalet University of Copenhagen Copenhagen Denmark
10. Institute of Clinical Medicine, Faculty of Medicine University of Copenhagen Copenhagen Denmark