1. Department of Hematology/Oncology, Providence Regional Cancer Center, Lacey, Washington.
2. Department of Gastroenterology, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
3. Department of Hematology/Oncology, Beth Israel Deaconess Medical Center, Boston, Massachusetts.
4. Division of Palliative Care, Department of Medicine, Massachusetts General Hospital, Boston, Massachusetts.