[1] Stallergenes, Med & Sci Dept, Viale Certosa 2, I-20155 Milan, Italy
[2] ICP Hosp, Allergy Pulm Rehabil Unit, Milan, Italy
[3] San Giovanni Battista Molinette Hosp, Allergy & Clin Immunol Unit, Turin, Italy
[4] Pediat Hosp Bambino Gesu, Div Allergy, Rome, Vatican
[5] Verona Gen Hosp, Allergy Unit, Verona, Italy
[6] Univ Florence, Dept Biomed, AOUC, Florence, Italy
[7] UCSC, Dept Internal Med & Geriatr, Allergy Unit, Rome, Italy
[8] IDI IRCCS, Expt Allergy Unit, Rome, Italy
[9] ASL Napoli 3 Sud, Naples, Italy
[10] ASP Trapani, Allergol Dept, Trapani, Italy
[11] AUSL 6 Palermo, Palermo, Italy
[12] Stallergenes SA, Mkt Dept, Antony, France
[13] Univ Genoa, DIMI, Allergy & Resp Dis, Genoa, Italy