1. Department of Obstetrics and Gynecology, Maternal-Fetal Medicine Unit, Van Education and Research Hospital, Van, Turkey
2. Department of Obstetrics and Gynecology, Uskudar University, Faculty of Medicine, Istanbul, Turkey
3. Department of Obstetrics and Gynecology, Maternal-Fetal Medicine Unit, Sisli Memorial Hospital, Istanbul, Turkey
4. Department of Obstetrics and Gynecology, Alle Clinic, Istanbul, Turkey