1. Department of Genetic Psychology, Faculty of Psychology, Ruhr-University Bochum, Universitätsstraße 150, 44801 Bochum, Germany
2. Department of Psychosomatic Medicine and Psychotherapy, LWL University Hospital, Ruhr University Bochum, 448791 Bochum, Germany
3. Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, 68159 Mannheim, Germany
4. Department of Behavioural and Cognitive Sciences, Laboratory for Stress and Gene-Environment Interplay, University of Luxemburg, Porte des Sciences, L-4366 Esch-sur-Alzette, Luxembourg