1 Unit of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy - alessandropileri@hotmail.it.
2 Unit of Dermatology, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy - alessandropileri@hotmail.it.
3 Unit of Dermatology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.
4 Unit of Hematology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.
5 Unit of Dermatology, Department of Surgery and Translational Medicine, University of Florence, Florence, Italy.