1 Department of Obstetrics and Gynecology, Strasbourg University Hospital, UMR-S 1121 Inserm, Biomaterials et Bioengineering, Strasbourg, France. Electronic address: nicolas.sananes@chru-strasbourg.fr.
2 Department of Obstetrics and Gynecology, Strasbourg University Hospital, Strasbourg, France.
3 Department of Public Health, Strasbourg University Hospital, Strasbourg, France.