1. Department of Psychiatry and Psychotherapy; Ludwig-Maximilians-University (LMU), Munich; 80336 Germany
2. Schön Klinik Roseneck affiliated with the Medical Faculty of the University of Munich (LMU); Prien 83209 Germany
3. Neuropsychiatric Research Institute; Fargo North Dakota
4. Department of Psychiatry and Behavioral Science; University of North Dakota School of Medicine and Health Sciences; Fargo North Dakota