1. University of Campinas, Campinas/São Paulo, Brazil
2. Vanderbilt Medical Center, Nashville, Tennessee
3. University of Arkansas for Medical Sciences, Little Rock, Arkansas
4. University of Kansas Medical Center, Kansas City, Kansas
5. Veterans Affairs Medical Center, Salt Lake City, Utah
6. San Antonio Urology, San Antonio, Texas
7. Florida Urology Associates, Orlando, Florida
8. Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire
9. ArkLaTex Urology, Shreveport, Louisiana