1. Urology Section, Department of Surgery, Veterans Administration, Greater Los Angeles Healthcare System, Los Angeles, California
2. Department of Urology, School of Medicine, University of California-Los Angeles, Los Angeles, California
3. Department of Physiological Sciences, University of California-Los Angeles, Los Angeles, California
4. Department of Surgery, Durham Veterans Affairs Medical Center and Division of Urologic Surgery and Duke Prostate Center, Departments of Surgery and Pathology, Duke University Medical Center, Durham, North Carolina
5. Division of Clinical Nutrition, School of Medicine, University of California-Los Angeles, Los Angeles, California
6. Department of Biostatistics, School of Medicine, University of California-Los Angeles, Los Angeles, California
7. General Clinical Research Center, School of Medicine, University of California-Los Angeles, Los Angeles, California
8. Department of Pediatrics, School of Medicine, University of California-Los Angeles, Los Angeles, California
9. Division of Pediatric Endocrinology, School of Medicine, University of California-Los Angeles, Los Angeles, California