1. Department of Neurology, University Hospital Cologne, Cologne, Germany
2. Institute of Neuroscience and Medicine, Research Center Juelich, Juelich, Germany
3. Center of Integrated Oncology, Universities of Cologne and Bonn, Cologne, Germany
4. Departments of Nuclear Medicine, Ludwig Maximilians-University of Munich, Munich, Germany
5. Department of Neurology, University Hospital Zurich, Zurich, Switzerland
6. Department of Nuclear Medicine and PET Centre, Aarhus University Hospital, Aarhus, Denmark
7. Department of Radiation Oncology, University Hospital Freiburg, Freiburg, Germany
8. Departments of Radiation Oncology, Ludwig Maximilians-University of Munich, Munich, Germany
9. Department of Clinical Physiology, Nuclear Medicine and PET, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
10. Department of Medicine I and Comprehensive Cancer Centre CNS Tumours Unit, Medical University of Vienna, Vienna, Austria
11. Department of Neurosurgery, University Hospital Lille, Lille, France
12. Department of Neurological Surgery, Brain Tumor and Neuro-Oncology Center, Cleveland Clinic, Cleveland, Ohio, USA
13. Department of Neurosurgery, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada
14. Department of Radiation Oncology, Gustave Roussy University Hospital, Villejuif, France
15. Department of Nuclear Medicine, University Hospital Aachen, Aachen, Germany
16. Departments of Neurosurgery, Ludwig Maximilians-University of Munich, Munich, Germany
17. German Cancer Consortium, Partner Sites, Freiburg and Munich, Germany