[1] UT SW Med Ctr, Dept Urol, Dallas, TX USA
[2] Univ Toronto, Dept Urol, Toronto, ON, Canada
[3] Welborn Clin, Evansville, IN USA
[4] Univ Rome, St Andrea Hosp, Rome, Italy
[5] Hosp Univ Pedro Ernesto UERJ, Serv Urol, Rio De Janeiro, Brazil
[6] GlaxoSmithKline Inc, Res & Dev, Res Triangle Pk, NC USA
[7] Univ Vita Salute San Raffaele, Dept Urol, Milan, Italy