1. Department of Psychotherapy and Biopsychosocial Health; Danube University Krems; Austria
2. Department of Psychosomatic Medicine; Center for Internal Medicine and Dermatology; Charité - Universitätsmedizin Berlin; Germany
3. Karl Landsteiner University of Health Sciences; Krems Austria
4. Department of Psychosomatic Medicine; University of Regensburg; Germany