[1] Katholieke Univ Leuven, Dept Obstet & Gynecol, Univ Hosp Leuven, Gynecol Oncol,Dept Oncol, Leuven, Belgium
[2] Clin Univ St Luc, UCL, Dept Obstet & Gynecol, B-1200 Brussels, Belgium
[3] Katholieke Univ Leuven, Univ Hosp Leuven, Dept Obstet & Gynecol, Leuven, Belgium