Affiliation: | 1. Allergy Unit, Department of Pediatric Medicine, Anna Meyer Children's University Hospital, Florence, Italy;2. Internal Medicine Unit, Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy;3. Department of Pediatric Medicine, Anna Meyer Children's University Hospital, Florence, Italy;4. Department of Dermatology, Anna Meyer Children's University Hospital, Florence, Italy;5. Pediatric Infectious Diseases Division, Department of Pediatric Medicine, Anna Meyer Children's University Hospital, Florence, Italy |