1. Department of Pediatric Hematology and Oncology University Medical Center Hamburg‐Eppendorf Hamburg Germany
2. Research Institute Children's Cancer Center Hamburg Hamburg Germany
3. Bioinformatics Core Unit University Medical Center Hamburg‐Eppendorf Hamburg Germany
4. Division for Neuropathology University Hospital Basel Basel Switzerland
5. Institute for Neuropathology University of Magdeburg Magdeburg Germany
6. Institute of Neuropathology University Medical Center Hamburg‐Eppendorf Hamburg Germany