1. Department of Radiation Oncology, Duke University Medical Center, Durham, NC
2. Department of Radiation Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
3. Gastrointestinal Unit, Department of Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
4. Department of Radiology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
5. Center for Regenerative Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, and Harvard Stem Cell Institute, Harvard University, Cambridge, MA
6. Department of Nuclear Medicine, Massachusetts General Hospital and Harvard Medical School, Boston, MA
7. Division of Hematology/Oncology, Massachusetts General Hospital and Harvard Medical School, Boston, MA
8. Department of Surgery, Massachusetts General Hospital and Harvard Medical School, Boston, MA
9. Department of Pathology, Massachusetts General Hospital and Harvard Medical School, Boston, MA