1. Multimodal Neuroimaging Group, Department of Nuclear Medicine, Faculty of Medicine and University Hospital Cologne, University of Cologne, Germany
2. Department of Neurology, University Hospital of Marburg, Germany
3. Max Planck Institute for Metabolism Research, Cologne, Germany
4. Cologne Cluster of Excellence in Cellular Stress and Aging-Associated Disease (CECAD), University of Cologne, Germany
5. Department of Neurology, Faculty of Medicine and University Hospital Cologne, University of Cologne, Germany
6. Cognitive Neuroscience, Institute of Neuroscience and Medicine (INM-3), Research Center Jülich, Germany
7. German Center for Neurodegenerative Diseases (DZNE), Germany