Please refer to this study by its ClinicalTrials.gov identifier: NCT00670306
| Medical Affiliated Research Center, Inc. |
| Huntsville, Alabama, United States, 35801 |
| Urology Centers of Alabama |
| Homewood, Alabama, United States, 35209 |
| California Professionnal Research |
| Newport Beach, California, United States, 92660 |
| South Orange County Medical Research Center |
| Laguna Hills, California, United States, 92653 |
| Northern California Research |
| Sacramento, California, United States, 95831 |
| San Diego Uro Research |
| San Diego, California, United States, 92103 |
| Medical Center for Clinical Research |
| San Diego, California, United States, 92108 |
| West Coast Clinical Research |
| Tarzana, California, United States, 91356 |
| Genitourinary Surgical Consultants |
| Denver, Colorado, United States, 80220 |
| Connecticut Clincal Research Center, LLC |
| Middlebury, Connecticut, United States, 06762 |
| Urological Associates of Bridgeport |
| Trumbull, Connecticut, United States, 06611 |
| South Florida Medical Research |
| Aventura, Florida, United States, 33180 |
| Tampa Bay Medical Research |
| Clearwater, Florida, United States, 33761 |
| University Urologists |
| Lake Worth, Florida, United States, 33461 |
| Winter Park Urology |
| Orlando, Florida, United States, 32803 |
| Specialists in Urology |
| Naples, Florida, United States, 34102 |
| Florida Urology Specialists |
| Sarasota, Florida, United States, 34237 |
| Mount Vernon Clinical Research, LLC |
| Sandy Springs, Georgia, United States, 30328 |
| North Idaho Urology |
| Coeur d'Alene, Idaho, United States, 50309 |
| Northeast Indiana Research, LLC |
| Fort Wayne, Indiana, United States, 46825 |
| Welborn Clinic |
| Newburgh, Indiana, United States, 47630 |
| The Iowa Clinic |
| Des Moines, Iowa, United States, 50309 |
| Four Rivers Clinical Research |
| Paducah, Kentucky, United States, 42003 |
| Regional Urology, LLC |
| Shreveport, Louisiana, United States, 71106 |
| Myron I. Murdock M.D. LLC |
| Greenbelt, Maryland, United States, 20770 |
| Chesapeake Urology Research Associates |
| Bel Air, Maryland, United States, 21014 |
| Michigan Institute of Urology |
| Troy, Michigan, United States, 48084 |
| Washington University School of Medicine |
| St-Louis, Missouri, United States, 63110 |
| Five Valleys Urology |
| Missoula, Montana, United States, 59802 |
| Quality Clinical Research, Inc. |
| Omaha, Nebraska, United States, 68114 |
| Meridian Clinical Research LLC |
| Omaha, Nebraska, United States, 68134 |
| Sheldon J. Freedman, MD, LTD |
| Las Vegas, Nevada, United States, 89148 |
| Delaware Valley Urology, LLC |
| Westampton, New Jersey, United States, 08060 |
| Lawrenceville Urology, P.A. dba AdvanceMed Research |
| Lawrenceville, New Jersey, United States, 08648 |
| Delaware Valley Urology, LLC-Voorhees |
| Voorhees, New Jersey, United States, 08043 |
| Medical & Clinical Research Associates |
| Bay Shore, New York, United States, 11706 |
| New York University School of Medicine |
| New York, New York, United States, 10016 |
| University Urology Associates |
| New-York, New York, United States, 10016 |
| Urological Surgeons of Long Island, Clinical Research Division |
| Garden City, New York, United States, 11530 |
| Capital Region Urologic Surgeons |
| Albany, New York, United States, 12208 |
| Advanced Urology |
| Jackson Heights, New York, United States, 11372 |
| Upstate Urology |
| Albany, New York, United States, 12206 |
| Urology Associates-Rochester |
| Rochester, New York, United States, 14618 |
| Northeast Urology Research |
| Concord, North Carolina, United States, 28025 |
| Piedmont Medical Group |
| Winston-Salem, North Carolina, United States, 27103 |
| The Urology Group |
| Cincinnati, Ohio, United States, 45212 |
| Parkhurst Research Oganization Inc. |
| Bethany, Oklahoma, United States, 73008 |
| Urologic Consultants of SEPA |
| Bala Cynwyd, Pennsylvania, United States, 19004 |
| Urological Associates of Lancaster |
| Lancaster, Pennsylvania, United States, 17604 |
| Omega Medical Research |
| Warwick, Rhode Island, United States, 02886 |
| Carolina Urologic Research Center |
| Myrtle Beach, South Carolina, United States, 29572 |
| Matrix Research |
| Greer, South Carolina, United States, 29650 |
| University of Texas Southwestern Medical Center, Department of Urology |
| Dallas, Texas, United States, 75390-9110 |
| Salt Lake Research, PLLC |
| Salt Lake City, Utah, United States, 84107 |
| Urology of Virginia |
| Virginia Beach, Virginia, United States, 23454 |
| Seattle Urology Research |
| Seattle, Washington, United States, 98166 |
| Can-Med Clinical Research Inc. |
| Victoria, British Columbia, Canada, V8T 5G1 |
| The Fe/Male Health Centres |
| Oakville, Ontario, Canada, L6H 3P1 |
| The Male Health Center |
| Toronto, Ontario, Canada, M6A 3B5 |
| Urologic Associates, Urologic Medical Research |
| Kitchener, Ontario, Canada, N2M 5N4 |
| Dr. Bernard Goldfarb, MD |
| North Bay, Ontario, Canada, P1B 7K8 |
| Anthony Skehan Medicine Professional Corp. |
| Thunder Bay,, Ontario, Canada, P7E 6E7 |
| Allan Abramovitch, MD |
| Scarborough, Ontario, Canada, M1S4V5 |
| Dr. Jonathan Giddens |
| Brampton, Ontario, Canada, L6T 4S5 |
| Guelph Urology Associates |
| Guelph, Ontario, Canada, N1H5J1 |
| Brantford Urology Research |
| Brantford, Ontario, Canada, N3R 4N3 |
| Mor Urology, Inc. |
| New Market, Ontario, Canada, L3X 1W1 |
| Dr. John Mahoney |
| Ottawa,, Ontario, Canada, K1H 8L6 |
| The Male / FemaleHealth and Research Center |
| Barrie, Ontario, Canada, L4M 7G1 |