1. Department of Obstetrics and Gynecology; Hôpital Foch; Suresnes; France
2. INSERM U764; Université Paris-Sud, AP-HP, Microbiology Department, Hôpital Antoine Béclère; Clamart; France
3. Department of Obstetrics and Gynecology; AP-HP, Antoine Béclère Hospital; Clamart; France