Affiliation: | 1. Harvard Radiation Oncology Program, Harvard Medical School, Boston, Massachusetts;2. Department of Statistics, University of Connecticut, Storrs, Connecticut;3. Department of Radiation Oncology, Dana Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts;4. Department of Medical Oncology, Dana Farber Cancer Institute and Brigham and Women's Hospital, Boston, Massachusetts;5. Department of Pathology, Baptist Hospital of Miami, Miami, Florida |