[1] IRCCS San Raffaele Sci Inst, Obstet & Gynaecol Dept, Milan, Italy
[2] Univ Vita Salute San Raffaele, Milan, Italy
[3] IRCCS San Raffaele Sci Inst, Intervent Cardiol Unit, Milan, Italy
[4] IRCCS Azienda Osped Univ Bologna, Obstet Unit, Bologna, Italy
[5] Univ Bologna, Dept Med & Surg Sci DIMEC, Alma Mater Studiorum, Bologna, Italy