1. Department of Psychiatry, University of Rostock, Rostock, Germany
2. DZNE, German Center for Neurodegenerative Diseases, Rostock, Germany
3. Department of Nuclear Medicine, University of Leipzig, Leipzig, Germany
4. Institute for Biostatistics and Informatics in Medicine and Ageing Research, University of Rostock, Rostock, Germany
5. Department of Psychiatry, Psychosomatic Medicine and Psychotherapy, Goethe University, Frankfurt, Germany
6. Institute for Stroke and Dementia Research, Ludwig-Maximilian-University, Munich, Germany
7. Cognitive Systems Group, Discipline of Psychiatry, School of Medicine, Trinity College Dublin, Dublin, Ireland
8. Trinity College Institute of Neuroscience (TCIN), Trinity College Dublin, Dublin, Ireland
9. Department of Radiology, University of California, San Francisco, CA, USA
10. A Medical Center, San Francisco, CA, USA
11. Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
12. DZNE, German Center for Neurodegenerative Diseases, Greifswald, Germany