Yoav Siegler1, Zeev Weiner2, Ido Solt1. 1. Department of Obstetrics and Gynecology, Rambam Health Care Campus, Haifa, Israel. 2. Department of Obstetrics and Gynecology, Rambam Health Care Campus, and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.