1. Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Jeddah, Saudi Arabia
2. Department of Neonatology, King Fahad Medical City, Riyadh, Saudi Arabia
3. Department of Obstetrics and Gynecology, Faculty of Medicine, Najran University, Najran, Saudi Arabia
4. Department of Obstetrics and Gynecology, Faculty of Medicine, Umm Al-Qura University, Makkah, Saudi Arabia
5. College of Medicine, Alfaisal University, Riyadh, Saudi Arabia
6. Department of Obstetrics and Gynecology, Faculty of Medicine, Misr University for Science and Technology, Giza, Egypt
7. Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt
8. Department of Obstetrics and Gynecology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
9. Department of Obstetrics and Gynecology, Faculty of Medicine, Al-Azhar University, New Damietta, Egypt
10. Department of Obstetrics and Gynecology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
11. Kasr Al-Ainy, Faculty of Medicine, Cairo University, Cairo, Egypt
12. Department of Obstetrics and Gynecology, Faculty of Medicine for Girls, Al-Azhar University, Cairo, Egypt