1. Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts
2. Department of Psychiatry, Harvard Medical School, Boston, Massachusetts
3. Department of Psychosomatic Medicine and Psychotherapy, University of Göttingen Medical Center, Göttingen, Germany
4. Department of Cardiovascular and Thoracic Surgery, University of Göttingen Medical Center, Göttingen, Germany
5. DZHK (German Center for Cardiovascular Research), partner site Göttingen, Germany
6. Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Charlestown, Massachusetts
7. Department of Physical Medicine and Rehabilitation, Harvard Medical School, Boston, Massachusetts
8. University of Rochester School of Medicine and Dentistry, Rochester, New York
9. University of Nebraska Medical Center, Omaha, Nebraska
10. Department of Geriatrics, University of Göttingen Medical Center, Göttingen, Germany
11. Department of Physical Medicine and Rehabilitation, Massachusetts General Hospital, Boston, Massachusetts