[1] Vrije Univ Amsterdam, Amsterdam UMC, Dept Reprod Med, Amsterdam, Netherlands
[2] Franciscus Hosp, Dept Obstet & Gynaecol, Rotterdam, Netherlands
[3] OLVG Oost Hosp, Dept Obstet & Gynaecol, Amsterdam, Netherlands
[4] Jeroen Bosch Hosp, Dept Obstet & Gynaecol, Den Bosch, Netherlands
[5] Univ Amsterdam, Amsterdam UMC, Ctr Reprod Med, Amsterdam, Netherlands
[6] Flevo Hosp, Dept Obstet & Gynaecol, Almere, Netherlands
[7] OLVG West, Dept Obstet & Gynaecol, Amsterdam, Netherlands
[8] Univ Amsterdam, Amsterdam UMC, Dept Epidemiol Biostat & Bioinformat, Amsterdam, Netherlands
[9] Univ Amsterdam, Amsterdam UMC, Dept Radiol & Nucl Med, Amsterdam, Netherlands
[10] Monash Univ, Monash Med Ctr, Dept Obstet & Gynaecol, Melbourne, Vic, Australia