Department of Obstetrics and Gynecology, Faculty of Medicine, Cairo University, Cairo, Egypt. Faculty of Medicine, Al-Azhar University, Cairo, Egypt. Electronic address: ahmedsaidali987@azhar.edu. Department of Obstetrics and Gynecology, Faculty of Medicine, Fayom University, Fayom. Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt. Reproductive Health and Family Planning Department, National Research Center, Dokki, Egypt; Consultant OB/Gyn, Aljazeerah Hospital, Giza, Egypt. Department of Obstetrics and Gynecology, Faculty of Medicine, Mansoura University, Mansoura, Dakahlia, Egypt. Department of Obstetrics and Gynecology, Faculty of Medicine, Misr University for Science and Technology, 6th October City, Giza, Egypt. Department of Obstetrics and Gynecology, Faculty of Medicine, Beni-Suef University, Beni-Suef, Egypt.