[1] Univ Florence, Dept Dermatol, I-50121 Florence, Italy
[2] CSPO, Mol & Nutr Epidemiol Unit, Florence, Italy
[3] Natl Canc Inst, I-20133 Milan, Italy
[4] Businco Hosp, Dermatol Unit, Cagliari, Italy
[5] Bufalini Hosp, Dermatol Unit, Catania, Italy
[6] Osped Riuniti Bergamo, Dermatol Clin, I-24100 Bergamo, Italy
[7] CRO, Ctr Canc Prevent, Ravenna, Italy
[8] Cannizaro Hosp, Unit Plast Surg, Catania, Italy
[9] Univ Bari, Unit Plast Surg, I-70121 Bari, Italy
[10] Osped S Gallicano, Dermatol Unit, Rome, Italy
[11] Osped San Paolo, Dermatol Unit, Milan, Italy
[12] Osped Ceppo, Dermatol Unit, Pistoia, Italy
[13] Univ Roma La Sapienza, Dermatol Clin, Rome, Italy
[14] Univ Naples Federico II, Dept Dermatol, Naples, Italy
[15] Dermatol Unit, Reggio Emilia, Italy