1. Department of Urology, University of California, Irvine, Orange, California.
2. Division of Urology, Department of Surgery, Rutgers New Jersey Medical School, Newark, New Jersey.
3. Department of Urology, Stanford University, Stanford, California.
4. Department of Urology, Kaiser Permanente, Fontana, California.
5. Gordon Urology, Gordon Hospital, Calhoun, Georgia.