[1] Dept Med, Frankfurt, Germany
[2] Univ Canc Ctr Frankfurt, Frankfurt, Germany
[3] Univ Hosp Muenster, Munster, Germany
[4] Hosp Meiningen, Dept Urol, Meiningen, Germany
[5] Outpatient Ctr Oncol, Bamberg, Germany
[6] Univ Hosp Erlangen, Dept Urol, Erlangen, Germany
[7] Helios Hosp, Dept Urol, Erfurt, Germany
[8] Univ Hosp Grosshadern, Munich, Germany
[9] Novartis Pharma GmbH, Nurnberg, Germany
[10] Univ Lubeck Med Sch, Lubeck, Germany