Affiliation: | 1. Department of Psychiatry, Duke University Medical Center, Durham, North Carolina;2. Department of Internal Medicine, University of California, Davis, California;3. Duke Clinical Research Institute, Duke University Medical Center, Durham, North Carolina;4. Department of Surgery, Division of Cardiothoracic Surgery, Duke University Medical Center, Durham, North Carolina;5. Division of Cardiology, Duke University Medical Center, Durham, North Carolina |