2 Unit of Dermatology Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy - alba.guglielmo@gmail.com.
3 Division of Dermatology, Sant'Orsola IRCCS Polyclinic, Bologna, Italy.
4 Unit of Dermatology Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum, University of Bologna, Bologna, Italy.
5 Unit of Hematopathology, Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna, Italy.