1. Allergy Department Hospital Infantil Universitario Niño Jesús Madrid Spain
2. FibHNJ, ARADyAL‐RETICs RD16 /0006/0026 Instituto de Salud Carlos III Madrid Spain
3. IIS La Princesa Madrid Spain
4. Pediatric Allergy and Clinical Immunology Department Hospital Sant Joan de Déu Barcelona Spain
5. Institut de Recerca Sant Joan de Déu Barcelona Spain
6. Universitat de Barcelona Barcelona Spain
7. Translational Research in Paediatric Specialities Area, Division of Allergy Bambino Gesù Children's Hospital, IRCCS Rome Italy
8. National Heart & Lung Institute, Imperial College London London UK
9. Department of Pediatrics Hassenfeld Children's Hospital, NYU Grossman School of Medicine New York City New York USA
10. Department of Pediatrics, Gastroenterology and Nutrition Collegium Medicum, University of Warmia and Mazury Olsztyn Poland
11. Division of Pneumology, Allergology and Cystic Fibrosis, Department of Paediatric and Adolescent Medicine University Hospital Frankfurt, Goethe University Frankfurt Germany
12. University College Cork Cork Ireland
13. Pediatric Pulmonology and Allergy Department CHU Lille, Univ. Lille, Hôpital Jeanne de Flandre Lille France
14. Section of Allergy and Immunology, Department of Pediatrics, Children's Hospital Colorado University of Colorado School of Medicine Aurura Colorado USA
15. German Allergy and Asthma Association (DAAB) Mönchengladbach Germany
16. Department of Paediatrics, Yong Loo Lin School of Medicine National University of Singapore Singapore City Singapore
17. Khoo Teck Puat‐National University Children's Medical Institute, National University Hospital, National University Health System Singapore City Singapore
18. Food Allergy Research and Resource Program, Department of Food Science and Technology University of Nebraska Lincoln Nebraska USA
19. Remington Consulting Group B.V Utrecht The Netherlands
20. Allergy Department, Hospital Clínico San Carlos, Facultad de Medicina Universidad Complutense (UCM), IdISSC, ARADyAL Madrid Spain