1. Department of Obstetrics and Gynecology, Meir Hospital, Kfar Saba, Israel;
2. Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel;
3. Sackler School of Medicine, New York/American Program, Tel Aviv University, Tel Aviv, Israel;
4. Department of Obstetrics and Gynecology, Laniado Hospital, Netanya, Israel