1. Department of Obstetrics and Gynecology, Bursa Yuksek Ihtisas Research and Training Hospital, Bursa, Turkey;
2. Department of Obstetrics and Gynecology, Gaziosmanpasa Taksim Research and Training Hospital, Istanbul, Turkey;
3. Department of Cardiology, Bursa Yuksek Ihtisas Research and Training Hospital, Bursa, Turkey