1. Department of Obstetrics and Gynecology , Maastricht University Medical Center+ , Maastricht , The Netherlands
2. Department of Obstetrics and Gynecology , GROW-School for Oncology and Developmental Biology , Maastricht , The Netherlands
3. Department of neonatology , Isala Kliniek Zwolle , Zwolle , The Netherlands
4. Department of Obstetrics and Gynecology , Amsterdam University Medical Center, Location Academic Medical Center , Amsterdam , The Netherlands
5. Department of Obstetrics and Gynecology, University Medical Center Utrecht , Utrecht , The Netherlands
6. Department of Obstetrics and Gynecology , University Medical Center Groningen , Groningen , The Netherlands
7. Department of Epidemiology, Care and Public Health Research Institute , Maastricht University , Maastricht , The Netherlands
8. Scientific Centre for Quality of Healthcare (IQ Healthcare), Radboud Institute for Health Sciences (RIHS), Radboud University Medical Center Nijmegen , Nijmegen , The Netherlands
9. Department of Clinical Epidemiology and Medical Technology Assessment (KEMTA) , Maastricht University Medical Centre+ , Maastricht , The Netherlands