1. Community Medicine Department, Alexandria University, Faculty of Medicine, EgyptCommunity Medicine Department, Alexandria University, Faculty of Medicine, Egypt
2. Department of Obstetrics and Gynecology, Alexandria University, Faculty of Medicine, EgyptDepartment of Obstetrics and Gynecology, Alexandria University, Faculty of Medicine, Egypt
3. Alexandria Regional Centre for Women's Health and Development, EgyptAlexandria Regional Centre for Women's Health and Development, Egypt