1. Department of Epidemiology and Health Monitoring, Robert Koch Institute, Berlin, Germany
2. Department of Psychiatry and Psychotherapy, University of Bonn, Bonn, Germany
3. German Center for Neurodegenerative Diseases (DZNE), Bonn, Germany
4. Department of Economic and Social Sciences, University of Applied Sciences Nordhausen, Nordhausen, Germany
5. Faculty of Life Sciences and Medicine, King’s College London, London, UK