1. Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA.
2. Medical Department, Fenway Health, Boston, Massachusetts, USA.
3. Department of Medicine, Beth Israel Deaconess Medical Center, Boston, Massachusetts, USA.
4. The Fenway Institute, Fenway Health, Boston, Massachusetts, USA.
5. Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA.
6. Department of Psychiatry, Massachusetts General Hospital, Boston, Massachusetts, USA.