1. Department of Internal Medicine, University of Brescia and Civil Hospital of Brescia, Piazza Spedali Civili 1, 25100 Brescia, Italy
2. Department of Dermatology, Civil Hospital of Brescia, Piazza Spedali Civili 1, 25100 Brescia, Italy
3. Department of Pharmacology, Faculty of Medicine, Catholic University of the Sacred Heart, Largo Francesco Vito 1, 00198 Rome, Italy
4. Department of Clinical and Biological Sciences, University of Torino, San Luigi Hospital, Regione Gonzole 10, 10043 Orbassano, Italy