1. Dermatology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
2. Medical Oncology; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
3. Otorhinolaryngology Unit; Department of Experimental Diagnostic and Specialty Medicine; University of Bologna; Bologna Italy
4. Department of Skin and Venereal Diseases; University of Modena and Reggio Emilia; Modena Italy