1. Department of Neurology; University Medical Center Hamburg-Eppendorf, University of Hamburg; Hamburg Germany
2. Department of Neuroradiology; Heidelberg University Hospital; Heidelberg Germany
3. Department of Oncology; St Jude Children's Research Hospital; Memphis TN
4. Institute of Human Genetics; University of Ulm; Ulm Germany
5. Division of Pediatric Neuro-oncology; German Cancer Research Center; Heidelberg Germany
6. Department of Maxillofacial Surgery; University Medical Center Hamburg-Eppendorf, University of Hamburg; Hamburg Germany
7. Leibniz Institute on Aging; Fritz Lipmann Institute; Jena Germany
8. Department of Radiology; German Cancer Research Center; Heidelberg Germany