1. Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee
2. Division of Pediatric Urology, Monroe Carell Jr. Vanderbilt Children's Hospital, Nashville, Tennessee
3. Division of Pediatric Urology, Primary Children's Medical Center, Salt Lake City, Utah
4. Department of Pathology, Vanderbilt University Medical Center, Nashville, Tennessee
5. Department of Cancer Biology, Vanderbilt University Medical Center, Nashville, Tennessee
6. Vanderbilt-Ingram Cancer Center, Vanderbilt University Medical Center, Nashville, Tennessee