1. Dermatology Department, Department of Systems MedicineUniversity of Rome Tor Vergata Rome Italy
2. Department of Pathological AnatomyUniversity of Rome Tor Vergata Rome Italy
3. Department of Dermatology and AllergologyUniversity of Marburg Marburg Germany
4. Division of Dermatology, Department of Experimental, Diagnostic and Speciality MedicineUniversity of Bologna Bologna Italy