1 1st Department of Dermatology and Venereology, Medical School, National and Kapodistrian University of Athens, "A. Sygros" Hospital for Skin and Venereal Diseases, Athens, Greece.
2 Histopathology, Medical School, National and Kapodistrian University of Athens, "A. Sygros" Hospital for Skin and Venereal Diseases, Athens, Greece.