1. University of Zurich Zurich Switzerland
2. Christine Kühne‐Center for Allergy Research and Education Davos Switzerland
3. Swiss Institute of Allergy and Asthma Research (SIAF) University of Zurich Davos Switzerland
4. Helmholtz Zentrum München ‐ German Research Center for Environmental Health Institute for Asthma and Allergy Prevention Neuherberg Germany
5. Dr von Hauner Children’s Hospital Ludwig Maximilian University Munich Germany
6. CPC‐M German Center for Lung Research Munich Germany
7. Environment Health Unit National Institute for Health and Welfare Kuopio Finland
8. Department of Public Health University of Helsinki Helsinki Finland
9. Department of Respiratory Disease, UMR/CNRS 6249 Chrono‐environment, University Hospital University of Besançon Besançon France
10. Pediatric Allergy Department University Hospital of Nancy Nancy France
11. EA3450 Développement Adaptation et Handicap (DevAH) University of Lorraine Nancy France
12. UMR 6249 Chrono‐environment CNRS and University of Franche‐Comté Besançon France
13. Children's Hospital Schwarzach Schwarzach Austria
14. Teaching Hospital of Paracelsus Medical Private University Salzburg Salzburg Austria
15. Children’s Hospital St Gallen St Gallen Switzerland
16. University Children's Hospital Zurich Zurich Switzerland