[1] Fdn Policlin Gemelli Presidio Columbus, Allergy Unit, Rome, Italy
[2] Univ Siena, Resp Dis & Lung Transplant Unit, AOUS, Dept Med Surg & Neuro Sci, Siena, Italy
[3] Univ Turin, Dept Med Sci, Pneumol Unit, Turin, Italy
[4] Sandro Pertini Hosp, Div Lung Dis, Rome, Italy
[5] Spedali Civili Brescia, Cardiothorac Dept, Pneumol Unit, Brescia, Italy
[6] Pneumol AO Papa Giovanni XXIII, Bergamo, Italy
[7] Hosp St Scholast, Pneumol Unit, Cassino, Italy
[8] Largo Univ Boccioni 1, Novartis Farma SpA, Origgio, Italy
[9] Humanitas Univ Rozzano, Dept Biomed Sci, Humanitas Clin & Res Ctr, Personalized Med Clin Asthma & Allergy, Milan, Italy