[1] Epsom & St Helier Univ Hosp NHS Trust, Dept Obstet & Gynaecol, Epsom, Surrey, England
[2] Iuliu Hatieganu Univ Med & Pharm, Dept Obstet & Gynaecol 2, Cluj Napoca, Romania
[3] Amer Univ Caribbean, Sch Med, Pembroke Pines, FL USA
[4] San Bortolo Hosp, Dept Obstet & Gynaecol, Vicenza, Italy
[5] Univ Sao Paulo, Fac Med, Hosp Clin, Urogynaecol Div,Dept Obstet & Gynaecol, Sao Paulo, Brazil
[6] Univ Hosp Zurich, Dept Gynecol, Zurich, Switzerland
[7] Athens Univ, Med Sch, Lab Expt Surg & Surg Res NS Christeas, Athens, Greece
[8] St Georges Univ London, Inst Med & Biomed Educ, London, England