[1] Royal Hallamshire Hosp, Urol Res Off, Sheffield S10 2JF, S Yorkshire, England
[2] Karolinska Univ Sjukhuset Hudd, Enheten Obstet & Gynekol, Stockholm, Sweden
[3] St Marys Hosp, Dept Obstet & Gynaecol, London, England
[4] Hosp Comarcal Santiago Apostol, Dept Urol, Miranda De Ebro Burgos, Spain
[5] Univ Turin, Urol Clin, ASO S Luigi Gonzaga, Urol Clin, Turin, Italy
[6] Astellas Pharma Europe Ltd, Med Affairs Europe, Staines, England