1. Department of Psychosomatic Medicine and Psychotherapy University of Göttingen Medical Center Göttingen Germany
2. Department of Internal Medicine and Cardiology Charité University Medicine Berlin Germany
3. German Center for Cardiovascular Research (DZHK), partner site Berlin Berlin Germany
4. Department of Cardiology and Pneumology University of Göttingen Medical Center Göttingen Germany
5. German Center for Cardiovascular Research (DZHK), partner site Göttingen Göttingen Germany
6. Department of Cardiology University Hospital Leipzig Germany