1. Department of Medical and Clinical Psychology, Uniformed Services University of the Health Sciences, Bethesda, Maryland.
2. Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania.
3. Division of Cardiology, Department of Medicine, Cedars-Sinai Research Institute, Cedars-Sinai Medical Center, Los Angeles, California.
4. Department of Medicine, University of California School of Medicine, Los Angeles, California.
5. Division of Heart and Vascular Diseases, National Heart, Lung and Blood Institute, National Institutes of Health, Bethesda, Maryland.
6. Department of Medicine, Allegheny General Hospital, Pittsburgh, Pennsylvania.
7. Atlanta Cardiovascular Research Institute, Atlanta, Georgia.
8. Division of Cardiology, Department of Medicine, University of Florida, Gainesville, Florida.
9. Departments of Psychiatry and Epidemiology, University of Pittsburgh, Pittsburgh, Pennsylvania.