1. Department of Obstetrics University Medical Center Utrecht, Wilhelmina Children's Hospital, Utrecht University Utrecht The Netherlands
2. Department of Neonatology University Medical Center Utrecht, Wilhelmina Children's Hospital, Utrecht University Utrecht The Netherlands
3. Department of Obstetrics and Gynecology Amsterdam University Medical Centers Amsterdam The Netherlands
4. Amsterdam Reproduction and Development Research Institute Amsterdam The Netherlands
5. Department of Obstetrics and Gynecology University Medical Center Groningen, University of Groningen Groningen The Netherlands
6. Department of Obstetrics and Fetal Medicine Erasmus MC University Medical Center Rotterdam Rotterdam The Netherlands
7. Julius Center for Health Sciences and Primary Care University Medical Center Utrecht Utrecht The Netherlands