1. Department of Obstetrics and Gynecology, College of Medicine, Prince Sattam Bin Abdulaziz University, Alkharj, Saudi Arabia
2. Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Jeddah, 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. Department of Obstetrics and Gynecology, Maternity and Children Hospital, Alkharj, Saudi Arabia
6. Department of Obstetrics and Gynecology, Maternity and Children Hospital, Makkah, Saudi Arabia
7. Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Riyadh, Saudi Arabia
8. Department of Obstetrics and Gynecology, King Abdullah bin Abdulaziz University Hospital, Riyadh, Saudi Arabia
9. Department of Obstetrics and Gynecology, King Fahad Medical City, Riyadh, Saudi Arabia
10. College of Medicine, Alfaisal University, Riyadh, Saudi Arabia