1. Health Sciences University, Zeynep Kamil Women and Children’s Diseases Training and Research Hospital, İstanbul, Turkey
2. Department of Obstetrics and Gynecology, Ümraniye Training and Research Hospital, İstanbul, Turkey
3. Department of Obstetrics and Gynecology, Cyprus International University, Nicosia, Cyprus
4. Department of Obstetrics and Gynecology, Sanko University, Gaziantep, Turkey.