1. Department of Dermatology, University of Brescia, Azienda Spedali Civili, Brescia, Italy.
2. Department of Pathology, University of Brescia, Azienda Spedali Civili, Brescia, Italy.
3. Department of Infectious Diseases, University of Brescia, Azienda Spedali Civili, Brescia, Italy.
4. Department of Oncology, University of Brescia, Azienda Spedali Civili, Brescia, Italy.