1. University Hospital for Psychosomatic Medicine and Psychotherapy University of Magdeburg Magdeburg Germany
2. Center for Biomolecular Interactions Bremen University of Bremen Bremen Germany
3. Institut of Psychosocial Medicine and Psychotherapy University of Jena Jena Germany
4. Clinic of Psychosomatic and Psychotherapy University of Gießen Gießen Germany
5. Clinic of Psychosomatic Medicine and Psychotherapy University of Mainz Mainz Germany