[1] Ghent Univ Hosp, Fac Med & Hlth Sci, Dept Human Struct & Repair, De Pintelaan 185, B-9000 Ghent, Belgium
[2] Ghent Univ Hosp, Dept Urol, B-9000 Ghent, Belgium
[3] Ghent Univ Hosp, Drug Res Unit, B-9000 Ghent, Belgium
[4] Ghent Univ Hosp, Dept Med Oncol, B-9000 Ghent, Belgium
[5] SUNY Downstate Hlth Sci Univ, Dept Urol, New York, NY 11203 USA
[6] Ghent Univ Hosp, Fac Med & Hlth Sci, Dept Internal Med & Pediat, B-9000 Ghent, Belgium
[7] Ghent Univ Hosp, Dept Pediat & Reconstruct Urol, B-9000 Ghent, Belgium
[8] Ferring Pharmaceut A S, Ferring Int Pharma Sci Ctr, Res & Dev, DK-2770 Copenhagen, Denmark