[1] Bracco Fdn, Milan, Italy
[2] Ctr Studi GISED FROM, Bergamo, Italy
[3] Azienda Osped Papa Giovanni XXIII, Dept Dermatol, Bergamo, Italy
[4] Military Hosp Ctr, Taranto, Italy
[5] G Rummo Hosp, Dermatol Unit, Benevento, Italy
[6] Univ Cagliari, Dermatol Clin, Cagliari, Italy
[7] Univ Hosp, Dermatol Clin, Naples, Italy
[8] Univ Catania, Dermatol Clin, Catania, Italy
[9] Ist Ospitalieri Hosp, Dermatol Unit, Cremona, Italy
[10] Univ Ferrara, Dermatol Sect, Dept Med Sci, I-44100 Ferrara, Italy
[11] Univ Florence, Dermatol Clin ASF SOS Cutaneous Immunopathol & Ra, Florence, Italy
[12] Santa Maria Nuova Hosp, Dermatol Unit, Reggio Emilia, Italy