1 Department of Dermatology, Centro Grandi Ustionati Cesena, AUSL Romagna, Cesena, Forlì-Cesena, Italy.
2 Skin Clinic, Forlì, Forlì-Cesena, Italy.
3 Department of Surgery, Medicine, Dentistry and Morphological Sciences, Institute of Pathology, Polyclinic Hospital, University of Modena and Reggio Emilia, Modena, Italy.
4 Department of Medical and Surgical Sciences, University of Bologna, Bologna, Italy - corrado.zengarini@studio.unibo.it.
5 Unit of Dermatology, University Hospital of Bologna, Bologna, Italy.