Dmochowski R1, Staskin D2, Appell R3, Zinner N4, Gittelman M5, Davila G6, Sand P7 1. Vanderbilt University, Nashville, 2. New York Weill Cornell Medical Center, New York, 3. Baylor College of Medicine, Texas Medicine Center, Houston, 4. UCLA, Western Clinical Research, Doctors Urology Group, Torrance, 5. Uromedix, Aventura, 6. Cleveland Clinic Florida, Weston, 7. Northwestern University, Chicago