1 Department of Dermatology, University of Modena and Reggio Emilia, Policlinico of Modena, Via del Pozzo 71, 41124 Modena (MO), Italy.
2 Internal and Metabolic Medicine, Graduate School of Allergy and Clinical Immunology, University of Modena and Reggio Emilia, Policlinico of Modena, Via del Pozzo 71, 41124 Modena (MO), Italy.