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