1. Departments of Urology, Massachusetts General Hospital, Boston, Massachusetts
2. University of British Columbia, Vancouver, British Columbia, Canada
3. Glickman Urological and Kidney Institute, Cleveland Clinic, Cleveland, Ohio
4. Indiana University Health Physicians, Indianapolis, Indiana
5. University of California-San Diego Health System, San Diego, California
6. The Eye and Ear Institute, Columbus, Ohio
7. Columbia University Medical Center, New York, New York
8. Department of Urologic Surgery, Vanderbilt University Medical Center, Nashville, Tennessee