1. Clinical Cooperation Unit Neuropathology (G380) German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280 Heidelberg 69120 Germany
2. Department of Neuropathology Heidelberg University Hospital, Im Neuenheimer Feld 224 Heidelberg 69120 Germany
3. German Cancer Consortium (DKTK) German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280 Heidelberg 69120 Germany
4. Division of Pediatric Neurooncology (B062) German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280 Heidelberg 69120 Germany
5. NN Burdenko Neurosurgical Institute, 5‐th Tverskaya_Yamskaya str. 16, Moscow Russia
6. Department of Pediatric Hematology and Oncology Heidelberg University Hospital, Im Neuenheimer Feld 430 Heidelberg 69120 Germany
7. Department of Pathology University of Colorado Anschutz Medical Campus 12605 East 16th Avenue Aurora, CO
8. Department of Pathology Memorial Sloan Kettering Cancer Center New York NY
9. Division of Molecular Genetics (B060) German Cancer Research Center (DKFZ), Im Neuenheimer Feld 280 Heidelberg 69120 Germany
10. Departments of Pathology and Neurological Surgery Brain Tumor Research Center, University of California, 505 Parnassus Avenue San Francisco CA