1. South Florida Medical Research, Aventura, Florida
2. TriState Urological Services, Cincinnati, Ohio
3. Metropolitan Urology, Jeffersonville, Indiana
4. Florida Urology Specialists, Sarasota, Florida
5. Virginia Urology, Richmond, Virginia
6. Regional Urology, Shreveport, Louisiana
7. AccuMed Research Associates, Garden City, New York
8. San Diego Clinical Trials, San Diego, California
9. University of Texas M.D. Anderson Cancer Center, Houston, Texas