[1] Clin San Carlo, Ambulatorio Allergol, Milan, Italy
[2] IRCCS Fdn Ca Granda Osped Maggiore Policlin, Dept Gen Med Immunol & Allergy, Milan, Italy
[3] IDI IRCCS, Clin & Lab Mol Allergy Unit, Via Monti Creta 104, I-00138 Rome, Italy
[4] Osped S Maria Angeli, Immunol & Allergol, Pordenone, Italy