1. Division of Clinical Psychology and Epidemiology, Department of Psychology University of Basel Basel Switzerland
2. Novartis Institutes for Biomedical Research Basel Switzerland
3. Department of Psychiatry, Perelman School of Medicine University of Pennsylvania Philadelphia Pennsylvania USA
4. Department of Clinical Psychology and Cognitive Behavioral Therapy International Psychoanalytic University Berlin Germany
5. Department of Psychosomatic Medicine University Hospital Basel and University of Basel Basel Switzerland