[1] Barzilai Govt Hosp, Dept Obstet & Gynecol, Infertil & IVF Unit, IL-78278 Ashqelon, Israel
[2] Ben Gurion Univ Negev, Sch Med, IL-84105 Beer Sheva, Israel
[3] Rabin Med Ctr, Helen Schneider Hosp Women, Dept Obstet & Gynecol, Petah Tiqwa, Israel
[4] Tel Aviv Univ, Sackler Fac Med, IL-69978 Tel Aviv, Israel