1. Texas Health Presbyterian Hospital of Dallas, Dallas, Texas
2. Wake Forest Baptist Medical Center, Winston-Salem, North Carolina
3. National Cancer Institute, National Institutes of Health, Bethesda, Maryland
4. Chesapeake Urology Associates, Baltimore, Maryland
5. NYU Langone Medical Center, New York, New York
6. University of California San Francisco, San Francisco, Calfornia
7. The University of Chicago Medical Center, Chicago, Illinois