1. Institute of Neuropathology; University of Bonn Medical Center; Bonn Germany
2. Department of Neuropathology; Sainte-Anne Hospital and Paris Descartes University; Paris France
3. Institute of Neurology; Medical University of Vienna; Vienna Austria
4. Department of Pediatrics and Adolescent Medicine; Medical University of Vienna; Vienna Austria
5. Department of Hematology, Oncology and Stem Cell Transplantation; University Children's Hospital; Regensburg, Regensburg Germany
6. Department of Neuropathology; Regensburg University Hospital; Regensburg Germany
7. Children's Hospital Karlsruhe; Karlsruhe Germany
8. Institute of Pathology; Hospital Karlsruhe; Karlsruhe Germany
9. Division of Pediatric Hematology and Oncology, Department of Pediatrics; Justus-Liebig University of Giessen; Giessen Germany
10. Institute of Neuropathology; University of Giessen; Giessen Germany
11. Section of Pediatric Oncology; Children's Hospital, University Medical Center, Johannes Gutenberg University Mainz; Mainz Germany
12. Institute of Neuropathology; University Medical Center, Johannes Gutenberg University Mainz; Mainz Germany
13. Department of Pediatrics and Adolescent Medicine; Dietrich-Bonhoeffer Hospital; Neubrandenburg Germany
14. University Hospital for Children and Adolescents, Johannes Wesling Hospital Minden, Ruhr University Hospital; Bochum Germany
15. Department of Neuropathology; Evangelisches Krankenhaus Bielefeld GmbH; Bielefeld Germany
16. Clinic of Pediatrics; Klinikum Dortmund; Dortmund Germany
17. Department of Pathology; Klinikum Dortmund; Dortmund Germany
18. Department of General Pediatrics, Hematology/Oncology; University Children's Hospital; Tuebingen Germany
19. Department of Neuropathology; University Hospital of Tuebingen; Tuebingen Germany
20. Department of Pediatric Hematology and Oncology, Center for Pediatrics, Medical Center-University of Freiburg, Faculty of Medicine; University of Freiburg; Freiburg Germany
21. Institute of Neuropathology, Medical Faculty; University of Freiburg; Freiburg Germany
22. Department of Pediatrics; Clinical Hospital Center Rijeka, School of Medicine Rijeka; Rijeka Croatia
23. Department of Pathology; University Hospital Center Zagreb, School of Medicine; Zagreb Croatia
24. Department of Pathology; Seoul National University Hospital, College of Medicine; Seoul Republic of Korea
25. Pediatric and Adolescent Oncology and Unite Mixte de Recherche 8203 du Centre National de la Recherche Scientifique, Gustave Roussy; Paris-Saclay University; Villejuif France
26. Department of Neurosurgery; Necker Enfants-Malades Hospital and Paris Descartes University; Paris France
27. Department of Pediatric Neurosurgery; Children's Hospital St. Augustin; Sankt Augustin Germany
28. Department of Pediatric Oncology; Children's Hospital St. Augustin; Sankt Augustin Germany
29. Institute of Clinical Neuropathology; Bremen-Mitte Medical Center; Bremen Germany
30. Neuroradiology, Department of Radiology; University of Bonn Medical Center; Bonn Germany