1. Department of Oncology; Tergooi Hospital; Blaricum the Netherlands
2. Department of Biometrics; Netherlands Cancer Institute; Amsterdam the Netherlands
3. Department of Urology; Radboud University Nijmegen Medical Center; Nijmegen the Netherlands
4. Department of Oncology; St. Antonius Hospital, Nieuwegein; the Netherlands
5. Department of Oncology and Prostate Cancer Center; St. Franciscus Hospital; Rotterdam the Netherlands
6. Department of Oncology; Isala Clinic; Zwolle the Netherlands
7. Department of Oncology; VU University Medical Center; Amsterdam the Netherlands
8. Department of Urology; University Medical Center Groningen; Groningen the Netherlands
9. Department of Oncology; Onze Lieve Vrouwe Gasthuis (OLVG) Hospital; Amsterdam the Netherlands
10. Department of Medical Oncology; Netherlands Cancer Institute; Amsterdam the Netherlands.