1. Department of Obstetrics and Gynecology, University Hospital of Larissa, Thessaly, Larissa, Greece
2. 1st Department of Obstetrics & Gynecology, Aristotle University of Thessaloniki, Papagheorgiou General Hospital, Thessaloniki, Greece
3. Department of Gynaecologic Endoscopic Surgery, Lefkos Stavros Hospital of Athens, Athens, Greece
4. University of Thessaly, Medical Faculty, Larissa, Greece