Affiliation: | 1. Division of Urology, Durham Veterans Affairs Health Care System, Durham, NC;2. Division of Urology, Durham Veterans Affairs Health Care System, Durham, NC Department of Biostatistics and Bioinformatics, Duke University School of Medicine, Durham, NC;3. Department of Radiation Oncology, Duke University Medical Center, Durham, NC;4. Patrick G. Johnston Centre for Cancer Research, Queen's University Belfast, Belfast, Northern Ireland, UK |