1. National Cancer Institute, Center for Cancer Research, Pediatric Oncology Branch, Bethesda, Maryland, USA
2. Children’s National Medical Center, Washington, DC, USA
3. Department of Human Genetics, Catholic University of Leuven, Leuven, Belgium
4. Winthrop University Hospital, Department of Hematology & Oncology, Mineola, New York, USA
5. Department of Radiology, University Hospital Leuven, Leuven, Belgium
6. Department of Radiology, Guy’s and St. Thomas’ NHS Foundation Trust, Kings College Hospital London, London, England
7. National Cancer Institute, Laboratory of Pathology, Bethesda, Maryland, USA
8. Department of Imaging and Pathology, Catholic University of Leuven, Leuven, Belgium
9. Royal National Orthopaedic Hospital NHS Foundation Trust, London, England
10. Neurofibromatosis Center, Department of Neurology, Guy’s and St. Thomas’ NHS Foundation Trust, London and King’s College, London, England