1. Department of Pediatric Hematology/Oncology/Hemostaseology, University Hospital Leipzig, Leipzig, Germany
2. Department of Pediatric Oncology/Hematology/SCT, Charité Campus Virchow-Klinikum, Berlin, Germany
3. Department of Pediatric Neurology, Charité Campus Virchow-Klinikum, Berlin, Germany
4. Department of Pediatric Neurology, University Medical Center Göttingen, Göttingen, Germany
5. Department of Pediatric Neurology, Klinikum Oldenburg, Oldenburg, Germany
6. Department of Pediatric Radiology, Charité Campus Virchow-Klinikum, Berlin, Germany
7. Department of Pediatrics, Helios-Klinikum Berlin-Buch, Berlin, Germany
8. Department of Neurology, University Hospital Leipzig, Leipzig, Germany