1. National Heart and Lung Institute Imperial College London London UK
2. Division of Population Medicine, School of Medicine Cardiff University Cardiff UK
3. NIHR Southampton Respiratory Biomedical Research Unit, University Hospital Southampton NHS Foundation Trust University of Southampton Faculty of Medicine Southampton UK
4. Center for Pediatric Gastroenterology Hospital Pequeno Principe Curitiba Brazil
5. University Hospital Tübingen Tübingen Germany
6. Therapiezentrum University Hospital Tübingen Tübingen Germany
7. Paris Descartes University Paris France
8. Clinique Marcel Sembat, Ramsay Group Boulogne Billancourt France
9. University of Colorado/Children's Hospital Colorado Denver Colorado USA
10. Allergy and Immunology Division, Perelman School of Medicine, The Children's Hospital of Philadelphia University of Pennsylvania Philadelphia Pennsylvania USA
11. Castle Partnership NHS Norwich UK
12. Division of Nutrition, Instituto da Criança e do Adolescente Hospital das Clínicas da Universidade de São Paulo São Paulo Brazil
13. Faculty, Ellyn Satter Institute Clinical Dietetics Branch Winn Army Community Hospital Fort Stewart Georgia USA
14. Imperial College London London UK
15. University of Winchester Winchester UK
16. University of KU Leuven Leuven Belgium