[1] Faculty of Health Sciences,Department of Epidemiology and Health Services Evaluation
[2] Joyce & Irving Goldman Medical School at Ben Gurion University of the Negev,Department of Obstetrics and Gynecology, Faculty of Health Sciences
[3] Ben-Gurion University of the Negev,undefined
[4] Soroka University Medical Center,undefined
[5] Ben-Gurion University of the Negev,undefined