1. Department of Obstetrics and Gynecology, Helena Venizelou Hospital, 11521 Athens, Greece
2. Gynaecological Oncology Department, Metaxa Cancer Hospital, 18537 Piraeus, Greece
3. Athens Colorectal Laboratory, 11528 Athens, Greece
4. Department of Colorectal Surgery, Royal Devon University Healthcare NHS Foundation Trust, Exeter EX2 5DW, UK
5. Unit of Obstetrics and Gynecology, “Paolo Giaccone” Hospital, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy
6. Department of Obstetrics and Gynecology, The Democritus University of Thrace, 68100 Alexandroupolis, Greece