1. Gynaecological Oncology Unit, Department of Obstetrics and Gynaecology, School of Medicine, University of Patras, 26504 Rion, Greece
2. Department of Obstetrics and Gynaecology, School of Medicine, University of Patras, 26504 Rion, Greece
3. Department of Obstetrics and Gynaecology, Medical School, University of Thessaly, 41334 Larisa, Greece
4. Hellenic National Public Health Organization—ECDC, 15123 Athens, Greece