1. Department of Cytopathology; General Chest Diseases Hospital of Athens “SOTIRIA”; Athens Greece
2. Pathology Department; “Agia Sofia” Children's Hospital; Athens Greece
3. Pathology Department; General Hospital of Athens “Evaggelismos”; Athens Greece
4. Department of Obstetrics & Gynaecology; Chesterfield Royal Hospital; Derbyshire UK
5. Department of Cytopathology; Athens University Medical School; “Attikon” University Hospital; Athens Greece