1 Department of Pulmonology, Haematology and Oncology, Division of Pulmonology, Unit of Allergology, High Speciality "A. Cardarelli" Hospital, Naples, Italy; Postgraduate School of Respiratory Medicine, Department of Experimental Medicine, University of Rome "Tor Vergata," Rome, Italy. Electronic address: gennaro.liccardi51@gmail.com.
2 Postgraduate School of Respiratory Medicine, Department of Experimental Medicine, University of Rome "Tor Vergata," Rome, Italy; Department of Experimental Medicine, Unit of Respiratory Medicine, University of Rome "Tor Vergata," Rome, Italy.
3 Allergy Unit, Department of Internal Medicine, University Hospital Ospedali Riuniti, Department of Clinical and Molecular Sciences, Marche Polytechnic University, Ancona, Italy.
4 Laboratory Medicine Unity of Buccheri, la Ferla Hospital, Palermo, Italy.
5 SOS Allergy and Immunology, USL Toscana Centro, Prato, Italy.
6 Allergy Unit, Medical Department, ASST of Mantova, Mantua, Italy.
7 Immunology and Allergy Unit, Santa Maria degli Angeli Hospital, Pordenone, Italy.
9 Departmental Unit of Allergology & Respiratory Diseases, Fondazione Poliambulanza, Brescia, Italy.
10 Allergy and Immunology Unit, Istituti Clinici Scientifici Maugeri, IRCCS, Pavia, Italy.
11 Division of Pulmonology, S. Corona Hospital, Pietra Ligure, Italy.
12 Allergology and Clinical Immunology Unit, Department of Medical Sciences, Battipaglia Hospital, Battipaglia, Salerno, Italy.
13 High Specialization Unit of Allergology, Hospital of Faenza, AUSL (Local Health Unit) of Romagna, Faenza, Italy.
14 Allergology and Immunology, Department of Medicine and Surgery, University of Parma, Parma, Italy.
15 G.S. Center, Salerno, Italy.
16 Diagnostic Center Basile, Naples, Italy.
17 Departimental Unit of Allergology, G.Da Saliceto Hospital, Piacenza, Italy.
18 Division of Pulmonology, Spedali Civili Brescia, Brescia, Italy.
19 Allergy and Respiratory Diseases, DIMI Department of Internal Medicine, University of Genoa, Ospedale Policlinico IRCCS - San Martino, Genoa, Italy.