1 Department of Pediatric Hematology, Oncology and Stem Cell Transplantation, University Children's Hospital, University of Würzburg, Würzburg, Germany.
2 Department of Neuroradiology, University Hospital, University of Würzburg, Würzburg, Germany.
3 Comprehensive Cancer Centre Mainfranken, University of Würzburg Medical Centre, Würzburg, Germany.
4 Department of Pediatric Neurosurgery, University Children's Hospital, University of Würzburg, Würzburg, Germany.
5 Department of Neuropathology, University Hospital Heidelberg, Heidelberg, Germany.
6 Clinical Cooperation Unit Neuropathology, German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
7 Hopp Children's Cancer Center (KiTZ), Heidelberg, Germany.
8 German Cancer Research Center (DKFZ), Heidelberg, Germany.
9 Division of Pediatric Neurooncology, German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany.
10 Division of Pediatric Hematology and Oncology, University Medical Center Göttingen, University of Göttingen, Göttingen, Germany.
11 Bavarian Cancer Research Center (BZKF), University of Würzburg, Würzburg, Germany.
12 Semmelweis University, Budapest, Hungrary.
13 Department of Neuropathology, University Hospital, University of Würzburg, Würzburg, Germany.