1. Department of Psychosomatic Medicine and Psychotherapy, University Hospital Tübingen, Tübingen, Germany
2. Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
3. School of Psychology and Counselling, Queensland University of Technology, Brisbane, Australia
4. refugio stuttgart e.v., Stuttgart, Germany
5. Department of Psychosomatic Medicine and Psychotherapy, Hospital Havelhöhe, Berlin, Germany
6. Department of Clinical Psychology and Psychotherapy, Eberhard Karls University of Tübingen, Tübingen, Germany
7. Department of Psychosomatic Medicine and Psychotherapy, University Hospital Magdeburg, Otto von Guericke University, Magdeburg, Germany