1. Gynaecological Oncology Department, Metaxa Cancer Hospital, Piraeus, Greece
2. Athens Colorectal Laboratory, Athens, Greece
3. Department of Colorectal Surgery, Royal Devon and Exeter NHS Foundation Trust, 17c James House, Residential Village, EX2 5DS, Bovemoors Lane, Exeter, UK
4. Third Department of Obstetrics and Gynaecology, National and Kapodistrian University of Athens Medical School, Attikon Hospital, Athens, Greece