1. Navy Medical Service, La Spezia, Italy
2. Department of Health, University of Genoa, Genoa, Italy
3. Department of Clinical and Biological Sciences, University of Torino, Turin, Italy
4. Department of Woman, Child, and General and Specialized Surgery, University of Campania Luigi Vanvitelli, Naples, Italy
5. Allergy Center, Istituto Giannina Gaslini, Genoa, Italy
6. Department of Outpatients, Casa di Cura Villa Montallegro, Genoa Italy