1. Department of Clinical Sciences, Pediatrics Lund University Lund Sweden
2. Department for Thrombosis and Hemostasis Skåne University Hospital Malmö Sweden
3. Hematology‐Oncology Center Beijing Children's Hospital Capital Medical University National Center for Children's Health Beijing China
4. Division of Haematology/Oncology and Child Health Evaluative Sciences Research Institute Hospital for Sick Children Toronto ON Canada
5. Chu Purpan Pav. Centre Hospitalier Lefebvre Centre Regional de l'Hemophilie Toulouse France
6. Hämophiliezentrum Wabern and Children's Hospital of the University of Bern Bern Switzerland
7. Great Ormond Hospital for Children NHS Trust Haemophilia Centre London UK
8. Children's Hospital and Haematology Helsinki University Hospital University of Helsinki Helsinki Finland
9. Childhood Cancer Research Unit Department of Women's and Children's Health Karolinska Institutet Stockholm Sweden
10. Astrid Lindgren Children´s Hospital Karolinska University Hospital Stockholm Sweden