[1] Med Univ Vienna, Vienna Gen Hosp, Ctr Comprehens Canc, Dept Urol, A-1090 Vienna, Austria
[2] Univ Nice Sophia Antipolis, CHU Nice, Hop Archet 2, Dept Urol, F-06200 Nice, France
[3] CHU Vaudois, Dept Urol, CH-1010 Lausanne, Switzerland
[4] Rennes Univ Hosp, Dept Urol, F-35000 Rennes, France
[5] Univ Texas SW Med Ctr Dallas, Dept Urol, Dallas, TX 75235 USA
[6] Cornell Univ, Weill Cornell Med Coll, Dept Urol, New York, NY 10011 USA