1. Department of Hematology; Radboud University Medical Center; Nijmegen The Netherlands
2. Hemophilia Treatment Center; Nijmegen-Eindhoven-Maastricht Nijmegen The Netherlands
3. Department of Human Genetics; Radboud University Medical Center; Nijmegen The Netherlands
4. Department of Hematology; Catharina Hospital; Eindhoven The Netherlands
5. Department of Medical Genetics; University Medical Center Utrecht; Utrecht The Netherlands
6. Princess Maxima Center for Pediatric Oncology; Utrecht The Netherlands
7. Department of Laboratory Medicine, Laboratory of Haematology; Radboud University Medical Center, Radboud Institute for Molecular Life Sciences; Nijmegen The Netherlands
8. Department of Pediatric Hemato-Oncology; Radboud University Medical Center; Nijmegen The Netherlands