[1] Hop Trousseau, Unite Obstet Matern, F-75012 Paris, France
[2] CHU Caen, Serv Gynecol Obstet, F-14000 Caen, France
[3] CHU Grenoble, Serv Gynecol Obstet, F-38700 La Tronche, France
[4] Univ Aix Marseille 2, Hop Nord, Serv Gynecol Obstet, F-13000 Marseille, France
[5] Ctr Hosp Univ Lyon Sud, Hosp Civils Lyon, Serv Gynecol Obstet, F-69310 Pierre Benite, France
[6] CHU Clermont Ferrand, Serv Gynecol Obstet, F-63000 Clermont Ferrand, France
[7] Hop Univ Strasbourg, Serv Gynecol Obstet, F-67098 Strasbourg, France
[8] CHU St Jacques, Serv Gynecol Obstet, F-25000 Besancon, France
[9] CHU Bordeaux, Ecole Sages Femmes, F-33000 Bordeaux, France
[10] Hop Cochin, AP HP, F-75014 Paris, France
[11] CHRU Lille, Pole Femme Mere Nouveau Ne, Clin Obstet, F-59037 Lille, France
[12] CHU Rennes, Dept Gynecol Obstet & Med Reprod, F-35000 Rennes, France
[13] Hop St Antoine, AP HP, Serv Gynecol Obstet, F-75012 Paris, France
[14] CHU Charles Nicolle, Pole Gynecol & Obstet, F-76000 Rouen, France
[15] Hop Antoine Beclere, Serv Reanimat Neonatale, F-92141 Clamart, France