1. Department of Cytopathology; National and Kapodistrian University of Athens, “ATTIKON” University Hospital; Athens 12462 Greece
2. 2nd Department of Gynecology; “Saint Savvas” Anticancer Hospital; Athens 11522 Greece
3. 3rd Department of Obstetrics and Gynecology; National and Kapodistrian University of Athens, “ATTIKON” University Hospital; Athens 12462 Greece
4. Department of Obstetrics and Gynecology, Division of Colposcopy; Mhtera Maternity Hospital; Athens Greece
5. 1st Department of Obstetrics and Gynecology; General Maternity District Hospital “Helena Venizelou,”; Athens 115 21 Greece
6. 2nd Department of Pathology; National and Kapodistrian University of Athens, “ATTIKON” University Hospital; Athens 12462 Greece