Affiliations:
1 Children & Young People’s Unit, The Royal Marsden NHS Foundation Trust, London, UK.
2 Department of Pediatrics, Columbia University, Irving Medical Center, New York, USA (current address).
3 Department of Clinical Neuropathology, Kings College NHS Foundation trust, London, UK.
4 Department of Diagnostic Radiology, The Royal Marsden NHS Foundation Trust, London, UK.
5 Department of Clinical Oncology, The Royal Marsden NHS Foundation Trust, London, UK
6 Department of Neurosurgery, King’s College Hospital NHS Foundation Trust, London, UK.
7 Department of Neurosurgery, Brighton & Sussex University Hospitals, Brighton, UK (current address).
8 Division of Clinical Studies, The Institute of Cancer Research, London, UK.