1. Department of Pediatrics, Allergy Unit University of Messina Messina Italy
2. Pediatric Clinic, Foundation IRCCS Policlinico San Matteo University of Pavia Pavia Italy
3. Department of Women and Child Health, Food Allergy Referral Centre Veneto Region Padua General University Hospital Padua Italy
4. Paediatric Allergy and Clinical Immunology Department, Hospital Sant Joan de Déu Universitat de Barcelona Barcelona Spain
5. Swiss Institute for Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
6. Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
7. Department of Pediatric Medicine, Pediatric Allergology Unit Bambino Gesù Children’s research Hospital (IRCCS) Rome Italy