1. Department of Obstetrics and Gynaecology; Hôpital Necker Enfants Malades, APHP; Paris France
2. Department of Biochemistry; Hôpital Robert Debré, APHP; Paris France
3. Department of Obstetrics and Gynaecology; Hôpital Robert Debré, APHP; Paris France
4. Department of Obstetrics and Gynaecology; CMCO; Schiltigheim France
5. Department of Developmental Biology; Hôpital Robert Debré, APHP; Paris France