[1] Royal Hallamshire Hosp, Sheffield S10 2JF, S Yorkshire, England
[2] Univ Antwerp, Fac Med, B-2020 Antwerp, Belgium
[3] Univ Med Ctr Maastricht, Maastricht, Netherlands
[4] Med Univ Warsaw, Dept Urol, Warsaw, Poland
[5] Private Obstet Gynecol Clin, Brno, Czech Republic
[6] Astellas Pharma, Med & Clin Dev, Global Dev EU, Leiderdorp, Netherlands