1. Swabian Children's Cancer Center Medical Faculty, University of Augsburg Augsburg Germany
2. Institute of Neuropathology, DGNN Brain Tumor Reference Center University of Bonn Bonn Germany
3. Institute of Diagnostic and Interventional Neuroradiology University Hospital Würzburg Würzburg Germany
4. Pediatric Neurosurgery, Charité Universitaetsmedizin Berlin, Corporate Member of Freie Universitaet Berlin Humboldt‐Universitaet zu Berlin, and Berlin Institute of Health Berlin Germany
5. Department of Radio‐Oncology University Hospital Leipzig Leipzig Germany
6. Department of Particle Therapy University Hospital Essen, West German Proton Therapy Centre Essen (WPE), West German Cancer Center (WTZ), German Cancer Consortium (DKTK) Essen Germany
7. Department of Pediatric Oncology/Hematology, Charité Universitaetsmedizin Berlin Corporate Member of Freie Universitaet Berlin, Humboldt‐Universitaet zu Berlin, and Berlin Institute of Health Berlin Germany
8. Hopp Children's Cancer Center Heidelberg (KiTZ) German Cancer Research Center (DKFZ), and Heidelberg University Hospital Heidelberg Germany
9. Institute of Biostatistics and Clinical Research University of Münster Münster Germany