1. Department of Obstetrics and Gynecology, Carl von Ossietszky Oldenburg University, Klinikum AöR, Oldenburg, Germany

2. Department of Obstetrics and Gynecology, İstanbul University Cerrahpaşa Faculty of Medicine, İstanbul, Turkey

3. Koç University Graduate School of Health Sciences and School of Medicine, İstanbul, Turkey

4. Department of Pathology, Acıbadem University Faculty of Medicine, İstanbul, Turkey