1. University of British Columbia, Vancouver, British Columbia, Canada
2. Vanderbilt University, Nashville, Tennessee
3. Chesapeake Urology Associates, Hanover, Maryland
4. Mayo Clinic Arizona, Phoenix, Arizona
5. Dartmouth Hitchcock Medical Center, Lebanon, New Hampshire
6. Cleveland Clinic, Cleveland, Ohio
7. Indiana University, Indianapolis, Indiana
8. University of California-San Diego, San Diego, California