1. Allergy Clinic, Casa di Cura Villa Montallegro, Genoa, Italy
2. Pediatric Primary Care ASL Napoli 2, Naples, Italy
3. Department of Health, University of Genoa, Genoa, 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