1. Department of Obstetrics Leiden University Medical Centre Leiden The Netherlands
2. Port‐Royal Maternity Unit Cochin Hospital, Assistance Publique‐Hôpitaux de Paris Paris France
3. Athena Institute VU University Amsterdam The Netherlands
4. Department of Obstetrics, WKZ Birth Centre, Division Woman and Baby University Medical Centre Utrecht Utrecht The Netherlands
5. Department of Obstetrics Hospital group du Havre Le Havre France
6. Department of Anesthesiology Armand Trousseau Children's Hospital Paris France
7. Université Paris Cité, Inserm, Obstetrical, Perinatal and Paediatric Epidemiology Research Team (Epopé), CRESS Paris France
8. Department of Obstetrics and Gynaecology University Hospital of Rouen Rouen France
9. Department of Obstetrics and Gynaecology Deventer Hospital Deventer The Netherlands