1. Department of Obstetrics and Gynecology, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Be’er Sheva, Israel;
2. Department of Public Health, Faculty of Health Sciences, Ben Gurion University of the Negev, Be’er Sheva, Israel;
3. Department of Pediatrics, Soroka University Medical Center, Faculty of Health Sciences, Ben-Gurion University of the Negev, Be’er Sheva, Israel