1. Asthma Center and Allergy Unit, Verona University Hospital, Verona, Italy.
2. Department of Surgery, Medicine and Molecular Biology and Critical Care, Nuovo Ospedale Apuano, University of Pisa, Pisa, Italy.
3. Pneumology and Tisiology Unit, National Health Service (ASL TO2), Turin, Italy.
4. Personalized Medicine, Asthma and Allergy, Humanitas Clinical and Research Center, IRCCS, Rozzano, Italy.
5. Department of Biomedical Sciences, Humanitas University, Pieve Emanuele, Italy.
6. Department of Clinical and Experimental Medicine,University of Florence, Florence, Italy.
7. Department of Internal Medicine, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Respiratory Unit and Cystic Fibrosis Adult Center, Milan, Italy.
8. Department of Pathophysiology and Transplantation, University of Milan, Milan, Italy.