1. Department of Urology, Stanford University School of Medicine, Stanford, California.
2. Veterans Affairs Palo Alto Health Care System, Palo Alto, California.
3. Johns Hopkins School of Education, Baltimore, Maryland.
4. Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.
5. Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee.
6. Palo Alto Medical Foundation, Palo Alto, California.
7. Division of Urology, Santa Clara Valley Medical Center, Santa Clara, California.
8. Department of Anesthesia, Stanford University School of Medicine, Stanford, California.