1. Department of Obstetrics and Gynecology, Acıbadem Mehmet Ali Aydınlar University, Acıbadem Kayseri Hospital, Kayseri, Turkey;
2. Department of Obstetrics and Gynecology, Memorial Kayseri Hospital, Kayseri, Turkey;
3. Department of Obstetrics and Gynecology, Erciyes University, Kayseri, Turkey