1. Department of Dermatology; ASST degli Spedali Civili, Spedali Civili di Brescia; Brescia Italy
2. Department of Dermatology; ASST dei Sette Laghi, Ospedale di Circolo e Fondazione Macchi di Varese; Varese Italy
3. Division of Dermatology, Department of Specialized, Experimental, and Diagnostic Medicine; University of Bologna, Azienda Ospedaliera Sant'Orsola-Malpighi; Bologna Italy
4. Department of Dermatology; Second University of Naples; Naples Italy
5. Department of Dermatology and Dermatologic Surgery; Ospedale di Sassuolo; Italy
6. Department of Dermatology; Azienda Sanitaria dell'Alto Adige-Comprensorio Sanitario di Merano, Ospedale "F. Tappeiner"; Merano Italy
7. Department of Dermatology; University of Trieste; Trieste Italy
8. Department of Dermatology; Policlinico di Modena; Modena Italy
9. Department of Dermatology; University of Modena and Reggio-Emilia; Modena Italy