[1] Katholieke Univ Leuven, Univ Hosp, Dept Urol, B-3000 Louvain, Belgium
[2] Univ Saarland, Dept Urol, D-6650 Homburg, Germany
[3] Univ Texas SW Med Ctr Dallas, Dept Urol, Dallas, TX 75390 USA
[4] Univ So Calif, Keck Sch Med, USC Inst Urol, Los Angeles, CA 90033 USA
[5] Med Univ Salzburg, Dept Urol, Salzburg, Austria
[6] Univ Toronto, Univ Hlth Network, Toronto, ON M5S 1A1, Canada
[7] Princess Margaret Hosp, Div Urol, Toronto, ON, Canada
[8] Univ Hosp Amsterdam, Acad Med Ctr, Dept Urol, Amsterdam, Netherlands
[9] Med Univ Vienna, Dept Urol, Vienna, Austria
[10] Univ Vita Salute San Raffaele, Dept Urol, Milan, Italy
[11] Duke Univ, Div Urol, Durham, NC USA
[12] Beijing Hosp, Dept Urol, Beijing, Peoples R China