1. Université de Paris, CRESS, Obstetric Perinatal and Paediatric Epidemiology Research Team, EPOPé, INSERM, INRA Paris France
2. Department of Obstetrics and Gynaecology Caen Hospital Caen France
3. Department of Obstetrics and Gynaecology Robert Debré Hospital Paris France
4. Department of Obstetrics and Gynaecology Beaujon‐Bichat Hospital, FHU PREMA Paris France
5. Department of Obstetrics and Gynaecology Louis Mourier Hospital, FHU PREMA Colombes France
6. Department of Biostatistics, Public Health and Medical Information Clinical Research Unit, Pharmacoepidemiology Center (Céphépi) Sorbonne University INSERM UMR‐S 1136 ‐ Pierre Louis Institute of Epidemiology and Public Health Paris France
7. Maternity Unit Paris Saint Joseph Hospital, FHU PREMA Paris France