1. Department of Gynecologic Oncology, University of Health Sciences Turkey, Zeynep Kamil Training and Research Hospital, Uskudar, Istanbul, Turkey
2. Department of Public Health, University of Health Sciences Turkey, Hamidiye Faculty of Medicine, Uskudar, Istanbul, Turkey
3. Department of Biostatistics, University of Health Sciences Turkey, Hamidiye Faculty of Medicine, Uskudar, Istanbul, Turkey