[1] Univ Campania Luigi Vanvitelli, Dept Obstet & Gynecol, Caserta, Italy
[2] Univ Naples Federico II, Naples, Italy
[3] IRCCS Burlo Garofolo, Unit Fetal Med & Prenatal Diag, Trieste, Italy
[4] Univ Parma, Dept Med & Surg, Obstet & Gynecol Unit, Parma, Italy
[5] AORN St Anna & San Sebastiano, UOC Dept Gynecol & Obstet, Caserta, Italy
[6] Univ Hosp Polyclin Paolo Giaccone, Dept Obstet & Gynecol, Palermo, Italy
[7] Magna Graecia Univ Catanzaro, Dept Obstet & Gynecol, Catanzaro, Italy
[8] Azienda Osped Santa Croce & Carle, Dept Obstet & Gynecol, Cuneo, Italy
[9] Fdn IRCCS Granda Osped Maggiore Policlin, Dept Fetal Med & Surg, Milan, Italy
[10] Integrated Univ Hosp Verona, Dept Obstet & Gynecol, Verona, Italy