1. Allergy Unit Department of Pediatrics Meyer Children’s University Hospital Florence Italy
2. Pediatric Department Latisana‐Palmanova Hospital Azienda Sanitaria Universitaria Friuli Centrale Italy
3. Department of Pediatrics Pediatric Clinic Fondazione IRCCS Policlinico San Matteo University of Pavia Pavia Italy
4. Pediatric Allergology Unit Department of Pediatric Medicine Bambino Gesù Children's Research Hospital (IRCCS Rome Italy
5. Pediatric Unit and Emergency University Hospital Consortium Corporation Polyclinic of Bari Pediatric Hospital Giovanni XXIII Bari Italy
6. Department of Medicine University of Verona Policlinico GB Rossi Verona Italy
7. Pediatric Unit ASST Mantua Mantua Italy
8. Department of Pediatrics Salesi Children's Hospital AOU Ospedali Riuniti Ancona Ancona Italy
9. Department of Human Pathology in Adult and Development Age "Gaetano Barresi," Allergy Unit Department of Pediatrics AOU Policlinico Gaetano Martino Messina Italy