1. German Center for Neurodegenerative Diseases (DZNE) Bonn Germany
2. Department of Psychiatry, University of Cologne Medical Faculty Cologne Germany
3. Department of Neurodegenerative Diseases and Gerontopsychiatry University of Bonn Bonn Germany
4. Department of Neurology University of Bonn Bonn Germany
5. German Center for Neurodegenerative Diseases (DZNE) Berlin Germany
6. Department of Neuropsychiatry Charité–Universitätsmedizin Berlin Berlin Germany
7. Department of Psychiatry and Psychotherapy University Medical Center Goettingen Goettingen Germany
8. Institute for Medical Biometry University of Bonn Bonn Germany
9. Department of Radiology University of Bonn Bonn Germany
10. German Center for Neurodegenerative Diseases (DZNE) Munich Germany
11. Institute for Stroke and Dementia Research Klinikum der Universität München Munich Germany
12. German Center for Neurodegenerative Diseases (DZNE) Magdeburg Germany
13. Institute for Cognitive Neurology and Dementia Research University of Magdeburg Magdeburg Germany
14. Department of Psychiatry and Psychotherapy Charité Berlin Germany
15. German Center for Neurodegenerative Diseases (DZNE) Rostock Germany
16. Department of Psychosomatic Medicine University of Rostock Rostock Germany
17. Department of Psychiatry and Psychotherapy Ludwig‐Maximilians‐University München Germany
18. Department of Psychiatry and Psychotherapy University of Tübingen Tübingen Germany
19. German Center for Neurodegenerative Diseases (DZNE) Tübingen Germany
20. German Center for Neurodegenerative Diseases (DZNE) Goettingen Germany