1 2nd Department of Psychiatry, "Attikon" General University Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.
2 2nd Department of Dermatology and Venereology, "Attikon" General University Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.
3 1st Department of Dermatology and Venereology, "A. Syggros" Hospital for Skin and Venereal Diseases, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece.
4 2nd Department of Dermatology and Venereology, "Attikon" General University Hospital, National and Kapodistrian University of Athens, School of Medicine, Athens, Greece. Electronic address: alexanderkatoulis@yahoo.co.uk.