1. Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Riyadh 11211, Saudi Arabia
2. College of Medicine, Alfaisal University, Riyadh 11533, Saudi Arabia
3. Department of Obstetrics and Gynecology, King Faisal Armed Forces Hospital, Khamis Mushait 62413, Saudi Arabia
4. Department of Obstetrics and Gynecology, King Faisal Specialist Hospital and Research Center, Jeddah 23431, Saudi Arabia
5. Department of Obstetrics and Gynecology, King Abdulaziz Medical City, Riyadh 11426, Saudi Arabia
6. Department of Pathology, King Fahd University Hospital, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
7. Department of Biochemistry, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
8. Oncology Diagnostic Unit, Faculty of Medicine, Ain Shams University, Cairo 11435, Egypt
9. Department of Community Medicine and Pilgrims Healthcare, Faculty of Medicine, Umm Al-Qura University, Makkah 21955, Saudi Arabia
10. Department of Obstetrics and Gynecology, College of Medicine, Princess Nourah Bint Abdulrahman University, Riyadh 11564, Saudi Arabia