[1] Netherlands Canc Inst, Dept Surg, Amsterdam, Netherlands
[2] Univ Amsterdam, Acad Med Ctr, Dept Urol, NL-1105 AZ Amsterdam, Netherlands
[3] Univ Amsterdam, Acad Med Ctr, NL-1105 AZ Amsterdam, Netherlands
[4] Netherlands Canc Inst, Dept Urol, Amsterdam, Netherlands
[5] Netherlands Canc Inst, Dept Biometr, Amsterdam, Netherlands
[6] Univ Twente, Netherlands Canc Inst, MIRA Inst, Dept Surg, Amsterdam Twente, Netherlands