1. Department of Obstetrics and Gynecology, Kaplan Medical Center, Israel
2. Faculty of Medicine, Hebrew University of Jeruslem, Israel
3. Clalit Health Services, the Central District, Israel
4. School of Public Health, Ben Gurion University, Israel
5. Department of Neonatology, Kaplan Medical Center, Israel
6. Diabetes, Endocrinology and Metabolism, Kaplan Medical Center, Israel