[1] Radboud Univ Nijmegen, Obstet & Gynaecol, Med Ctr, Nijmegen, Netherlands
[2] Nij Geertgen Ctr Fertil, Elsendorp, Netherlands
[3] Univ Med Ctr Utrecht, Fertil Unit, Div Mother & Child, Utrecht, Netherlands
[4] Nij Barrahus Ctr Fertil, Wolvega, Netherlands
[5] Jeroen Bosch Ziekenhuis, Gynaecol, Shertogenbosch, Netherlands
[6] Isala Fertil Ctr, Isala, Zwolle, Netherlands
[7] Ctr Reprod Med, MUMC, Maastricht, Netherlands
[8] Diakonessen Hosp, Gynaecol, Utrecht, Netherlands
[9] Hosp Gelderse Vallei, Gynaecol, Ede, Netherlands
[10] Univ Med Ctr Groningen, Sect Reprod Med, Dept Obstet & Gynecol, Groningen, Netherlands
[11] NoordWest Ziekenhuisgroep, Obstet Gynaecol & Reprod Med, Alkmaar, Netherlands
[12] Max Med Ctr, Obstet & Gynaecol, Veldhoven Eindhoven, Netherlands
[13] Haga Ziekenhuis, Gynaecol, The Hague, Netherlands
[14] Gelre Hosp, Gynaecol, Apeldoorn, Netherlands
[15] Amphia Ziekenhuis, Obstet & Gynaecol, Breda, Netherlands
[16] Amsterdam UMC VUmc, IVF Ctr, Amsterdam, Netherlands
[17] OLVG, Obstet & Gynaecol, Amsterdam, Netherlands
[18] Leiden Univ, Gynaecol, Med Ctr, Leiden, Netherlands
[19] Elisabeth TweeSteden Hosp, Ctr Reprod, Tilburg, Netherlands
[20] Haaglanden Med Ctr, Gynaecol, The Hague, Netherlands
[21] Amsterdam UMC Iocat Univ Amsterdam, Ctr Reprod Med, Amsterdam, Netherlands