1. Department of Obstetrics and Gynecology, Izmir Private Can Hospital, İzmir, Turkey
2. Department of Obstetrics and Gynecology, Atatürk Training and Research Hospital, University of Katip Çelebi, İzmir, Turkey
3. Department of Obstetrics and Gynecology, Kütahya Health Sciences University, Kütahya, Turkey
4. Department of Obstetrics and Gynecology, Recep Tayyip Erdoğan University, Rize, Turkey.