1. Division of Urology and the Duke Prostate Center; Duke University Medical Center; Durham North Carolina USA
2. Department of Radiation Oncology; Duke University Medical Center; Durham North Carolina USA
3. Department of Pathology; Duke University Medical Center; Durham North Carolina USA
4. Department of Surgery; Durham VA Medical Center; Durham North Carolina USA
5. Division of Medical Oncology; Department of Medicine; Duke University Medical Center; Durham North Carolina USA