1. Department of Obstetrics and Gynecology, University Hospitals Schleswig-Holstein, Campus Kiel, Arnold-Heller-Strasse 3 (House C), 24105 Kiel, Germany
2. German Center for Infections in Gynecology and Obstetrics, at Helios University Hospital Wuppertal, Heusnerstrasse 40, 42283 Wuppertal, Germany
3. Department of Gynecology-Robotic Surgery at European Interbalkan Medical Center, 57001 Thessaloniki, Greece
4. School of Public Health, Iran University of Medical Sciences (IUMS), Tehran 14167-53955, Iran