1. Department of Urology, Kaiser Permanente, Los Angeles, California
2. Kansas City Urology Care, Leawood, Kansas
3. Urological Surgeons, Kankakee, Illinois
4. Neil Baum Urology, New Orleans, Louisiana
5. CHUS-Fleurimont, Quebec, Canada
6. Emory University School of Medicine, Atlanta, Georgia
7. Can-Med Clinical Research Inc., Victoria, British Columbia, Canada
8. Metropolitan Urologic Specialists, Plymouth, Minnesota
9. The Lahey Clinic, Burlington, Massachusetts