1. VU University Medical Center, Amsterdam, the NetherlandsThese authors contributed equally to the study.
2. Academic Hospital Maastricht, Maastricht, the NetherlandsThese authors contributed equally to the study.
3. D.O. Ott Research Institute of Obstetrics and Gynaecology, St. Petersburg, RussiaSt. Petersburg State University, St. Petersburg, Russia
4. Health Service Amsterdam, Amsterdam, the NetherlandsUniversity of Amsterdam, Amsterdam, the Netherlands
5. D.O. Ott Research Institute of Obstetrics and Gynaecology, St. Petersburg, Russia
6. Uppsala University, Uppsala, Sweden
7. Uppsala University Hospital, Uppsala, Sweden
8. VU University Medical Center, Amsterdam, the Netherlands
9. South Limburg Public Health Service, Heerlen, the Netherlands
10. VU University Medical Center, Amsterdam, the NetherlandsAcademic Hospital Maastricht, Maastricht, the NetherlandsCity of Hope and Beckman Research Institute, Duarte, California, USA