1. Cardiovascular Medicine, University of Michigan, Ann Arbor, Michigan.
2. Department of Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania.
3. Division of Preventive and Behavioral Medicine, University of Massachusetts, Worcester, Massachusetts.
4. Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
5. Department of Psychiatry, Brigham and Women's Hospital, and Department of Psychosocial Oncology and Palliative Care, Dana Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts.
6. Department of Internal Medicine, Division of Cardiology, Massachusetts General Hospital, Boston, Massachusetts.