[1] LMU Munchen, Med Klin & Poliklin 4, LMU Klinikum, Munich, Germany
[2] MRC Lab Med Sci, London, England
[3] Imperial Coll London, Inst Clin Sci, London, England
[4] Karolinska Inst, Dept Clin Sci Intervent & Technol, Div Obstet & Gynecol, Stockholm, Sweden
[5] Karolinska Univ Hosp, Dept Gynecol & Reprod Med, Stockholm, Sweden
[6] Charite Univ Med Berlin, Inst Expt Endokrinol, Berlin, Germany
[7] Free Univ Berlin, Berlin, Germany
[8] Humboldt Univ, Berlin, Germany
[9] Berlin Inst Hlth, Berlin, Germany
[10] Univ Paris, Inst Cochin, Inserm U1016, CNRS UMR8104, Paris, France