1. Department of Cytopathology; Venizeleion-Pananeion' General Hospital; Herakleion Greece
2. Department of Pathology; Venizeleion-Pananeion' General Hospital; Herakleion Greece
3. Department of Cytopathology; University of Athens Medical School; ‘Attikon’ University Hospital; Athens Greece
4. 2nd Department of Pathology; University of Athens Medical School; ‘Attikon’ University Hospital; Athens Greece