[1] Ben Gurion Univ Negev, Soroka Univ Med Ctr, Fac Hlth Sci, Dept Obstet & Gynecol, Beer Sheva, Israel
[2] Sheba Med Ctr, Dept Obstet & Gynecol, Tel Hashomer, Israel
[3] Tel Aviv Univ, Ramat Gan, Israel
[4] Univ Milano Bicocca, San Gerardo Hosp, MBBM Fdn, Dept Obstet & Gynecol, Monza, Italy