1. Department of Nutrition Sciences, University of Alabama at Birmingham, Birmingham, Alabama, USA.
2. Department of Pathology, Duke University Medical Center, Durham, North Carolina, USA.
3. Department of Surgical Pathology & Cytopathology, Veterans' Affairs Medical Center, Durham, North Carolina, USA.
4. Department of Radiation Oncology, Duke University Medical Center, Durham, North Carolina, USA.
5. Division of Urologic Surgery, Duke University Medical Center, Durham, North Carolina, USA.
6. Duke Prostate Center, Duke University Medical Center, Durham, North Carolina, USA.
7. Duke University School of Medicine, Durham, North Carolina, USA.
8. Department of Family Medicine, University of Michigan, Ann Arbor, Michigan, USA.
9. Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA.
10. Veterans Affairs Medical Center, Ann Arbor, Michigan, USA.
11. Comprehensive Cancer Center, University of Alabama at Birmingham, Birmingham, Alabama, USA.