1. Department of Urologic Sciences, University of British Columbia, Vancouver, British Columbia, Canada.
2. Department of Urology, University of California San Diego, San Diego, California, USA.
3. Department of Urology, Vanderbilt, Nashville, Tennessee, USA.
4. Department of Urology, Ohio State University, Columbus, Ohio, USA.
5. Department of Urology, Dartmouth College, Hanover, New Hampshire, USA.
6. Department of Urology, Mayo Clinic Arizona, Phoenix, Arizona, USA.
7. Department of Urology, Massachusetts General Hospital, Boston, Massachusetts, USA.