1. Department of Biomedical Sciences and Human Oncology, Section of Dermatology University of Bari Bari Italy
2. Pathology Unit, Department of Emergency and Organ Transplantations University of Bari Bari Italy
3. Dermatology Section, Department of Medicine University of Perugia Perugia Italy
4. Dermatology Clinic, Maggiore Hospital University of Trieste Trieste Italy
5. Department of Clinical and Experimental Medicine, Dermatology University of Messina Messina Italy