1. Multimodal Neuroimaging Group Department of Nuclear Medicine University Hospital Cologne Cologne Germany
2. Cognitive Neuroscience Institute of Neuroscience and Medicine (INM‐3) Research Center Jülich Jülich Germany
3. German Center for Neurodegenerative Diseases (DZNE) Bonn Germany
4. Department of Psychiatry University Hospital Cologne Cologne Germany
5. Department of Psychiatry and Psychotherapy University Hospital Bonn Bonn Germany
6. Department of Neurology University Hospital Cologne Cologne Germany
7. Institute of Radiochemistry and Experimental Molecular Imaging University of Cologne Cologne Germany
8. Institute of Neuroscience & Medicine (INM‐5) Nuclear Chemistry Research Center Jülich Jülich Germany