[1] Chaim Sheba Med Ctr, Dept Obstet & Gynecol, Ramat Gan, Israel
[2] Tel Aviv Univ, Fac Med & Hlth Sci, Tel Aviv, Israel
[3] Tel Aviv Univ, Fac Med & Hlth Sci, Tarnesby Tarnowski Chair Family Planning & Fertil, Tel Aviv, Israel
[4] Ctr Human Reprod CHR, New York, NY USA
[5] Fdn Reprod Med, New York, NY USA
[6] Rockefeller Univ, Lab Synthet Embryol, New York, NY USA
[7] Med Univ Vienna, Dept Obstet & Gynecol, Vienna, Austria