1. AP-HP, Department of Obstetrics and Gynecology, Antoine Béclère Hospital, Paris-Sud University, Clamart, France
2. Department of Obstetrics and Gynecology, Sud Francilien Hospital, Evry, France
3. AP-HP, Unit of Fetal Pathology, Antoine Béclère Hospital, Clamart, France
4. Department of Pathology and Laboratory Medicine, New York–Presbyterian Hospital, Weill-Cornell Medical Center, NY, USA