1. Reproductive Health and Family Planning Department, National Research Centre, Giza, Egypt
2. Department of Obstetrics and Gynecology, Algezeerah Hospital, Giza, Egypt
3. Obstetrics and Gynecology Department, Suez Canal University, Al Ismailia, Egypt
4. Obstetrics and Gynecology Department, Kasr alainy Faculty of Medicine, Cairo University, Cairo, Egypt
5. Obstetrics and Gynecology Department, Ainshams Faculty of Medicine, Cairo, Egypt
6. Urology Department, Kasralainy Faculty of Medicine, Cairo University, Cairo, Egypt
7. Obstetrics and Gynecology Department, Faculty of Medicine, Assuit University, Assuit, Egypt
8. Obstetrics and Gynecology Department, Helwan Faculty of Medicine, Helwan University, Helwan, Egypt