1. Pediatric Hematology‐Oncology and Stem Cell Transplantation Ghent University Hospital and Cancer Research Institute Ghent Ghent Belgium
2. Pediatric Hematology‐Oncology Hôpital Universitaire des Enfants Reine Fabiola (HUDERF‐UKZKF) Brussels Belgium
3. Pediatric Hematology‐Oncology University Hospital Gasthuisberg Leuven Belgium
4. Pediatric Hematology‐Oncology Cliniques Universitaires Saint‐Luc (UCL) Brussels Belgium
5. Pediatric Hematology‐Oncology UZ Brussel Brussels Belgium
6. Pediatric Hematology‐Oncology University Hospital Antwerp Antwerp Belgium
7. Department of Pediatric Oncology CHC‐ Hospital of Hope Montegnée Belgium
8. Department of Pediatric Oncology CHR Citadelle Liège Belgium
9. Pediatric Hematology‐Oncology and Stem Cell Transplantation Ghent University Hospital GhentBelgium
10. Faculty of Medicine and Health Sciences Ghent University Ghent Belgium