1. Neurologische Klinik, Klinikum Aschaffenburg-Alzenau, Aschaffenburg, Germany
2. Interdisciplinary Division of Neurooncology, University Hospital Tubingen, Tübingen, Germany
3. Department of Radiation Oncology, University Hospital Erlangen, Erlangen, Germany
4. Dept. of General Neurosurgery, University of Cologne, Cologne, Nordrhein-Westfalen, Germany
5. Division of Clinical Neurooncology, Department of Neurology, University Hospital Essen, University Duisburg-Essen, Essen, Germany