1 Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center of Research in Epidemiology and Statistics (CRESS), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Recherche Agronomique (INRA), Université de Paris, Port Royal Maternity Unit, 53 Avenue de l'Observatoire, 75014 Paris, France; Department of Obstetrics and Gynaecology, Antoine Béclère Hospital, Assistance Publique-Hôpitaux de Paris, Paris Saclay University, Clamart, France. Electronic address: isabelle.monier@inserm.fr.
2 Obstetrical, Perinatal and Pediatric Epidemiology Research Team (EPOPé), Center of Research in Epidemiology and Statistics (CRESS), Institut National de la Santé et de la Recherche Médicale (INSERM), Institut National de la Recherche Agronomique (INRA), Université de Paris, Paris, France.
3 Department of Obstetrics and Gynaecology, Antoine Béclère Hospital, Assistance Publique-Hôpitaux de Paris, Paris Saclay University, Clamart, France.