1. Center for Healthcare Organization and Implementation Research (CHOIR), VA Boston Healthcare System, Boston, Massachusetts, USA.
2. Department of Psychology, Montclair State University, Montclair, New Jersey, USA.
3. Department of Medicine, Infectious Disease, and General Medicine, VA Boston Healthcare System, Boston, Massachusetts, USA.
4. Department of Medicine, Harvard Medical School, Boston, Massachusetts, USA.
5. Department of Medicine, General Medicine, VA Boston Healthcare System, Boston, Massachusetts, USA.
6. Department of Psychosocial Oncology and Palliative Care, Dana Farber Cancer Institute, Boston, Massachusetts, USA.
7. Department of Medicine, University of Wisconsin-Madison School of Medicine and Public Health, Madison, Wisconsin, USA.
8. Department of Surgery, Boston University School of Medicine, Boston, Massachusetts, USA.