[1] OLV Robot Surg Inst, Dept Surg, Aalst, Belgium
[2] Univ Washington, Dept Surg, Swedish Urol Grp, Seattle, WA 98195 USA
[3] Washington Univ, Sch Med, Dept Surg, St Louis, MO 63130 USA
[4] Univ Montreal, Ctr Hlth, Dept Surg, Canc Prognost & Hlth Outcomes Unit, Montreal, PQ, Canada
[5] Dept Oncol & Surg Sci, Urol Clin, Padua, Italy