1. Institute of Neuroscience and Medicine (INM-3/-4), Forschungszentrum Jülich GmbH, Jülich, Germany
2. Faculty of Medicine, Department of Nuclear Medicine, University of Augsburg, Augsburg, Germany
3. Department of Nuclear Medicine, University Medical Center of the Johannes Gutenberg University Mainz, Mainz, Germany
4. Department of Nuclear Medicine, University Hospital RWTH Aachen, Aachen, Germany
5. Center for Integrated Oncology (CIO), Universities of Aachen, Bonn, Cologne, and Duesseldorf, Germany
6. Department of Radiology and Nuclear Medicine, Maastricht University Medical Center, Maastricht, The Netherlands
7. Faculty of Medicine and University Hospital Cologne, Department of Neurology, University of Cologne, Cologne, Germany