1. Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
2. Department of Obstetrics and Gynecology, Faculty of Medicine, Najran University, Najran, Saudi Arabia
3. Department of Obstetrics and Gynecology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
4. Department of Obstetrics and Gynecology, Maternity and Children Hospital, Makkah, Saudi Arabia
5. Department of Obstetrics and Gynecology, College of Medicine, King Saud University, King Saud University Medical City, Riyadh, Saudi Arabia
6. Department of Obstetrics and Gynecology, Al-Azhar University, Faculty of Medicine for Girls, Cairo, Egypt
7. Department of Obstetrics and Gynecology, Damietta Faculty of Medicine, Al-Azhar University, Damietta, Egypt
8. Kasralainy, Faculty of Medicine, Cairo University, Cairo, Egypt
9. Department of Obstetrics and Gynecology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
10. Department of Obstetrics and Gynecology, Faculty of Medicine, Assiut University, Assiut, Egypt