1. Department of Pediatrics and Pediatric Hematology/Oncology, University Children’s Hospital, Carl von Ossietzky University, Klinikum Oldenburg AöR, Oldenburg, Germany
2. Division of Epidemiology and Biometry, Carl von Ossietzky University, Oldenburg, Germany
3. Pediatric Hematology-Oncology Center, Children’s Hospital of Eastern Switzerland, St. Gallen, Switzerland
4. Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, Switzerland
5. Department of Pediatrics, McMaster Children’s Hospital and McMaster University, Hamilton, Ontario, Canada
6. Department of Pediatrics, Division of Pediatric Hematology and Oncology, Children’s Hospital Lucerne, Lucerne, Switzerland
7. Pediatrics III, University Hospital of Essen, Essen, Germany
8. University Children’s Hospital, Pediatric Endocrinology, University Tübingen, Tübingen, Germany
9. Diagnostic and Interventional Neuroradiology, Faculty of Medicine, University of Augsburg, Augsburg, Germany
10. Institute of Neuropathology, DGNN Brain Tumor Reference Center, University of Bonn Medical Center, Bonn, Germany