1. Allergology Unit, Parma University Hospital, 43121 Parma, Italy
2. Department of Medicine and Surgery, University of Parma, 43121 Parma, Italy
3. Allergy Unit, Verona University Hospital, 37134 Verona, Italy
4. Personalized Medicine, Asthma and Allergy, IRCCS Humanitas Research Hospital, Via Manzoni 56, Rozzano, 20089 Milan, Italy
5. Department of Biomedical Sciences, Humanitas University, Via Rita Levi Montalcini 4, Pieve Emanuele, 20072 Milan, Italy