1. Department of Neuropathology; Institute of Pathology; University Hospital Heidelberg; Heidelberg Germany
2. German Cancer Consortium (DKTK); CCU Neuropathology German Cancer Research Centre (DKFZ); Heidelberg Germany
3. Department of General Pathology; Institute of Pathology; University Hospital Heidelberg; Heidelberg Germany
4. German Cancer Consortium (DKTK); Division of Paediatric Neurooncology; German Cancer Research Centre (DKFZ); Heidelberg Germany
5. Institute of Pathology; Ludwig-Maximilians-University Munich; Munich Germany
6. Institute of Pathology; Friedrich-Schiller-University Jena; Jena Germany
7. Institute of Pathology; Hospital Lippe; Detmold Germany
8. Department of General Visceral and Transplantation Surgery; University Hospital Heidelberg; Heidelberg Germany
9. Department of Orthopaedics and Traumatology; University Hospital Heidelberg; Heidelberg Germany
10. Department of Paediatric Oncology, Haematology and Immunology; University Hospital Heidelberg; Heidelberg Germany