[1] Catholic Univ Louvain, Pole Rech Gynecol, IREC, Ave Mounier 52 B1-52-02, B-1200 Brussels, Belgium
[2] Clin Univ St Luc, Dept Gynecol, Brussels, Belgium
[3] Univ Genoa, IRCCS Osped Policlin San Martino, Dept Med Oncol, UOC Clin Oncol Med, Genoa, Italy
[4] Univ Genoa, Sch Med, Dept Internal Med & Med Specialties DiMI, Genoa, Italy
[5] Copenhagen Univ Hosp, Rigshosp, Fertil Clin, DK-2100 Copenhagen, Denmark
[6] Univ Coimbra, Fac Med, Portugal Clin Acad Ctr Coimbra, Coimbra, Portugal
[7] Hosp Univ Puerta de Hierro Majadahonda, Dept Med Oncol, Majadahonda, Spain
[8] Ctr Reprod Hlth, Family & Fertil Ctr, 9 Baby, Bologna, Italy
[9] Inst Cancerol Ouest Rene Gauducheau, Dept Oncol Chirurg, St Herblain, France
[10] Univ Liverpool, Dept Hlth Serv Res, Liverpool, Merseyside, England
[11] Univ Ziekenhuis Brussel, Ctr Reprod Med, Laarbeeklaan 101, B-1090 Brussels, Belgium
[12] Heidelberg Univ, Dept Gynecol Endocrinol & Reprod Infertil, Neuenheimer Feld 440, D-69120 Heidelberg, Germany