1. Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
2. Department of Psychosocial Oncology and Palliative Care, Dana-Farber Cancer Institute, and Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts.
3. Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, Massachusetts.
4. Data Development, Integration, Verification, and Analysis (DataD.I.V.A.), Pittsburgh, Pennsylvania.