1 Dermatology Unit, IRCCS Azienda Ospedaliero, Universitaria di Bologna, Bologna, Italy; Department of Experimental, Diagnostic and Specialty Medicine Alma Mater Studiorum, University of Bologna, Bologna, Italy. Electronic address: giuliamaria.ravaiol2@unibo.it.
2 Dermatology Unit, IRCCS Azienda Ospedaliero, Universitaria di Bologna, Bologna, Italy; Department of Experimental, Diagnostic and Specialty Medicine Alma Mater Studiorum, University of Bologna, Bologna, Italy.