[1] Univ Calif Los Angeles, Dept Urol, Los Angeles, CA USA
[2] Duke Univ, Dept Urol, Durham, NC USA
[3] Univ Rennes 1, Dept Urol, Rennes, France
[4] Univ Magdeburg, Dept Urol, D-39106 Magdeburg, Germany
[5] Benevento Hosp, Dept Urol, Benevento, Italy
[6] CHU Henri Mondor, Dept Urol, F-94010 Creteil, France
[7] Univ St Etienne, Dept Urol, St Etienne, France
[8] Hop Necker Enfants Malad, Dept Urol, Paris, France
[9] Univ Toulouse 1, Dept Urol, F-31042 Toulouse, France
[10] Univ Bordeaux 1, Dept Urol, Toulouse, France
[11] Univ Rouen, Dept Urol, Rouen, France
[12] Univ Lyon 1, Dept Urol, F-69365 Lyon, France
[13] Univ Calif Los Angeles, Dept Med, Los Angeles, CA 90024 USA