1. 1st Department of Dermatology‐Venereology, “Andreas Sygros” Hospital University of Athens Medical School Athens Greece
2. Laboratory of Haematology and Blood Bank Unit, “Attikon” Hospital University of Athens Medical School Athens Greece
3. Microbiology Department “Saint Savvas” Oncology Hospital Athens Greece
4. Department of Hygiene, Epidemiology and Medical Statistics University of Athens Medical School Athens Greece
5. Department of Biomedical Sciences Humanitas University Milan Italy
6. IRCCS Humanitas Research Hospital Milan Italy