[1] Fdn IRCCS Policlin San Matteo, Dermatol Clin, Pavia, Italy
[2] Univ Pavia, Dept Clin Surg Diagnost & Pediat Sci, Pavia, Italy
[3] ASST Papa Giovanni XXIII Hosp, Dermatol Unit, Bergamo, Italy
[4] Fdn IRCCS Policlin San Matteo, Clin Epidemiol & Biometr Unit, Sci Direct, Pavia, Italy
[5] Fdn IRCCS Policlin San Matteo, Lab Immunoallergol Clin Chem, Viale Camillo Golgi 19, I-27100 Pavia, Italy
[6] Fdn IRCCS Policlin San Matteo, Pediat Clin, Viale Camillo Golgi 19, I-27100 Pavia, Italy
[7] Univ Pavia, Viale Camillo Golgi 19, I-27100 Pavia, Italy