1. IUF - Leibniz Research Institute for Environmental Medicine; Düsseldorf Germany
2. Hochschule Hamm-Lippstadt; Hamm Germany
3. Environmental and Occupational Health; Public Health Ontario; Toronto ON Canada
4. Dalla Lana School of Public Health; University of Toronto; Toronto ON Canada
5. School of Population and Public Health; University of British Columbia; Vancouver BC Canada
6. Institute of Environmental Medicine; Karolinska Institutet; Stockholm Sweden
7. Centre for Occupational and Environmental Medicine; Stockholm County Council; Stockholm Sweden
8. Sachs Children's Hospital; Stockholm Sweden
9. Department for Environmental Immunology; Helmholtz Centre for Environmental Research-UFZ; Leipzig Germany
10. Department of Pediatrics; Marien-Hospital Wesel, Research Institute; Wesel Germany
11. Institute for Risk Assessment Sciences; Utrecht University; Utrecht The Netherlands
12. Julius Center for Health Sciences and Primary Care; University Medical Center Utrecht; Utrecht The Netherlands
13. Department of Medicine; University of British Columbia; Vancouver BC Canada
14. ISGlobal; Centre for Research in Environmental Epidemiology (CREAL); Barcelona Spain
15. Universitat Pompeu Fabra (UPF); Barcelona Spain
16. CIBER Epidemiología y Salud Pública (CIBERESP); Barcelona Spain
17. Institute of Epidemiology; Helmholtz Zentrum München - German Research Center for Environmental Health; Neuherberg Germany
18. Institute and Outpatient Clinic for Occupational, Social and Environmental Medicine; Inner City Clinic; University Hospital of Munich (LMU); Munich Germany
19. Department of Epidemiology; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
20. Observational and Pragmatic Research Institute; Singapore
21. Department of Pediatric Pulmonology and Pediatric Allergology; Beatrix Children's Hospital; University of Groningen; University Medical Center Groningen; Groningen The Netherlands
22. Groningen Research Institute for Asthma and COPD (GRIAC); University of Groningen; University Medical Center Groningen; Groningen The Netherlands
23. Department of Pediatrics; Faculty of Medicine & Dentistry; University of Alberta; Edmonton AB Canada
24. School of Public Health; University of Alberta; Edmonton AB Canada
25. Institute for Heart and Lung Health; Vancouver BC Canada