1. INSERM, UMR S953; Epidemiological research unit on perinatal health and women's' and children's health; Paris France
2. Department of Gynaecology; Obstetrics; Intercommunal Hospital Center of Poissy-Saint-Germain-en-Laye; Poissy France
3. Research unit EA7285; Risk, safety in clinical medicine for women, perinatal health, Université Versailles St-Quentin; Montigny-le-Bretonneux France
4. University Hospital of La Réunion; Saint-Denis France
5. University Hospital Saint-Jacques, Franche-Comté University; Besançon France
6. Poitiers University, INSERM CIC802, University Hospital of Poitiers; Poitiers France
7. INSERM, CESP Centre for Research in Epidemiology and Population Health, U1018, Gender, Sexual and Reproductive Health Team, Univ Paris-Sud, UMRS 1018, Kremlin-Bicêtre, France; Institut National des Etudes Démographiques; Paris France