1. Harvard Radiation Oncology Program; Harvard Medical School; Boston Massachusetts
2. Harvard Medical School; Boston Massachusetts
3. Department of Statistics; University of Connecticut; Storrs Connecticut
4. Department of Radiation Oncology; Brigham and Women's Hospital/Dana-Farber Cancer Institute; Boston Massachusetts
5. Lank Center for Genitourinary Oncology; Brigham and Women's Hospital/Dana-Farber Cancer Institute, Harvard Medical School; Boston Massachusetts
6. Department of Radiation Oncology; The University of Texas MD Anderson Cancer Center; Houston Texas
7. Department of Urology; Brigham and Women's Hospital; Boston Massachusetts
8. Department of Urology; University of California at Los Angeles; Los Angeles California