1. Behavioral Medicine Program, Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, USA.
2. Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA.
3. The Fenway Institute, Fenway Health, Boston, Massachusetts, USA.
4. Department of Psychological and Brain Sciences, Boston University, Boston, Massachusetts, USA.
5. Department of Internal Medicine, University of Rochester, Rochester, New York, USA.
6. Department of Psychology, Syracuse University, Syracuse, New York, USA.