[1] Charite, Dept Gynaecol, D-13353 Berlin, Germany
[2] Univ Hosp Maastricht, Dept Obstet & Gynaecol, Maastricht, Netherlands
[3] Charite Campus Virchow, Dept Gynaecol, Berlin, Germany
[4] Med Univ Vienna, Mol Oncol Grp, Vienna, Austria
[5] Med Univ Innsbruck, Dept Obstet & Gynecol, A-6020 Innsbruck, Austria
[6] Med Univ Hamburg, Clin Gynecol, Hamburg, Germany
[7] Univ Hosp KU Leuven, Dept Obstet & Gynaecol, Louvain, Belgium