1. Department of Obstetrics and Gynecology, Emek Medical Center, Afula, Israel
2. Department of Obstetrics and Gynecology, Baruch Padeh Medical Center Poriya, Tiberias, Israel
3. Faculty of Medicine in Galilee, Bar-Ilan University, Safed, Israel
4. Rappaport Faculty of Medicine, Technion, Haifa, Israel