1. Faculty of Health Sciences, Joyce & Irving Goldman Medical School, Ben Gurion University of the Negev, Beer Sheva, Israel
2. Department of Obstetrics and Gynecology, Soroka University Medical Center, Ben Gurion University of the Negev, Beer Sheva, Israel
3. Department of Obstetrics and Gynecology, Shaare Zedek Medical Center, Jerusalem, affiliated with the Hebrew University Medical School of Jerusalem, Jerusalem, Israel
4. Advanced Data Management & Statistical Programming Services for Academic & Clinical Research. Faculty of Health Sciences, Soroka University Medical Center, Ben Gurion University of the Negev, Beer Sheva, Israel