1. First Department of Pathology, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
2. Department of Plastic and Reconstructive Surgery, Greek Anticancer Institute, Saint Savvas Hospital, 11522 Athens, Greece
3. Department of Biological Chemistry, Medical School, National and Kapodistrian University of Athens, 11527 Athens, Greece
4. Department of Pathology, Andreas Syggros Hospital of Cutaneous and Venereal Diseases, 16121 Athens, Greece