1 Section of Dermatology and Infectious Diseases, Department of Medical Sciences, University of Ferrara, Ferrara, Italy.
2 Dermatology Unit, IRCCS Azienda Ospedaliero-Universitaria di Bologna, Policlinico S. Orsola-Malpighi, Bologna, Italy.
3 Dermatology Unit, Department of Surgical, Medical, Dental and Morphological Sciences Related to Transplant, Oncology and Regenerative Medicine, University of Modena and Reggio Emilia, Modena, Italy.
4 Dermatology Unit, Arcispedale Santa Maria Nuova, Azienda Usl-IRCCS di Reggio Emilia, Reggio Emilia, Italy.
5 Dermatology Unit, Infermi Hospital, Rimini, AUSL Romagna, Italy.
6 Section of Dermatology, Department of Medicine and Surgery, University of Parma, Parma, Italy.
7 Dermatologic Unit, Ospedale "Guglielmo da Saliceto" di Piacenza PC, Italy.
8 UOC Dermatology of Ravenna, Lugo and Faenza, Italy.
9 Department of Environmental and Prevention Sciences, University of Ferrara, Ferrara, Italy.