[1] Mt Sinai Hosp, Lunenfeld Tanenbaum Res Inst, Toronto, ON M5T 3H7, Canada
[2] Univ Duisburg Essen, Dept Gynecol & Obstet, D-45122 Essen, Germany
[3] Univ Paris 05, UMR S1147, F-75006 Paris, France
[4] Univ Versailles, F-78035 St Quentin en Yvelines, France
[5] Univ Nice Sophia Antipolis, INSERM, U1065, F-06204 Nice 3, France