1. Department of Cardiovascular and Thoracic Surgery, University of Göttingen Medical Center, Robert-Koch-Str. 40, 37075 Göttingen, Germany
2. Department of Psychosomatic Medicine and Psychotherapy, University of Göttingen Medical Center, Robert-Koch-Str. 40, 37075 Göttingen, Germany
3. German Center for Cardiovascular Research (DZHK), Partner Site Göttingen, Germany
4. Department of Psychiatry, Massachusetts General Hospital, Harvard Medical School, Boston, USA
5. Department of Cardiology and Pneumology, University of Göttingen Medical Center, Göttingen, Germany