1. Department of Obstetrics and Gynecology, Bursa Yuksek Ihtisas Research and Training Hospital, Saglik Bilimleri University, Bursa, Turkey;
2. Department of Obstetrics and Gynecology, Esenler Hospital, Medipol University, Istanbul, Turkey;
3. Department of Obstetrics and Gynecology, Antalya Research and Training Hospital, Saglik Bilimleri University, Antalya, Turkey