1. Department of Psychiatry and Psychotherapy, University Medicine Greifswald , 17475 Greifswald , Germany
2. DZHK (German Center for Cardiovascular Research), Partner site Greifswald , Greifswald , Germany
3. Department of Epidemiology and Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins Bloomberg School of Public Health , Baltimore, MD 21205 , USA