1. Center of Research in Epidemiology and Statistics (CRESS) INSERM National Institute for Agricultural Research (INRA) Université de Paris Paris France
2. Department of Obstetrics and Gynecology, AP-HP Louis Mourier HospitalUniversité de Paris Colombes France
3. Department of Obstetrics and Gynecology AP-HP Robert Debré HospitalUniversité de Paris Paris France
4. AP-HP Cochin HospitalClinical Research Unit‐Clinical Investigation Center (URC‐CIC) Paris Descartes Necker/Cochin Paris France
5. AP-HP Cochin HospitalPort Royal Maternity UnitUniversité de Paris ParisF-75014France