1. Faculty of Medicine, Department of Psychiatry and Psychotherapy, Section for Experimental Neuropsychiatry; Medical Center, University of Freiburg; Freiburg Germany
2. Faculty of Medicine, Department of Psychosomatic Medicine and Psychotherapy; Medical Center, University of Freiburg; Freiburg Germany
3. Faculty of Medicine, Department of Psychiatry and Psychotherapy; Medical Center, University of Mainz; Mainz Germany