1. Department of Obstetrics and Gynecology; Faculty of Medicine; Abant İzzet Baysal University; Bolu
2. Department of Obstetrics and Gynecology; Simav City Hospital; Kütahya
3. Department of Obstetrics and Gynecology; Faculty of Medicine; Düzce University; Düzce
4. Department of Obstetrics and Gynecology; Medicana International Hospital; Ankara; Turkey