1 The Department of Obstetrics and Gynecology, Acibadem Mehmet Ali Aydinlar University, Faculty of Medicine, Acibadem Fulya Hospital (Dr. Celik), Istanbul, Turkey; Department of Obstetrics and Gynecology, Biruni University (Dr. Bastu), Istanbul, Turkey. Electronic address: hgoksever@yahoo.com.
2 The Department of Obstetrics and Gynecology, Acibadem Mehmet Ali Aydinlar University, Faculty of Medicine, Acibadem Fulya Hospital (Dr. Celik), Istanbul, Turkey; Department of Obstetrics and Gynecology, Biruni University (Dr. Bastu), Istanbul, Turkey.