1. Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
2. Groningen Research Institute for Asthma and COPD (GRIAC), Department of Pulmonology, and
3. Department of Genetics, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
4. Department of Preventive Medicine, University of Southern California, Los Angeles, California, USA
5. Department of Epidemiology of Allergic and Respiratory Diseases, Institut National de la Santé et de la Recherche Médicale (INSERM), Paris, France
6. ISGlobal, Centre for Research in Environmental Epidemiology (CREAL), Barcelona, Spain
7. IMIM (Hospital del Mar Medical Research Institute), Barcelona, Spain
8. Universitat Pompeu Fabra (UPF), Barcelona, Spain
9. CIBER Epidemiología y Salud Pública (CIBERESP), Barcelona, Spain
10. European Institute for Systems Biology and Medicine, Université de Lyon, Lyon, France
11. Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden
12. CHU (Centre Hospitalier Universitaire) Montpellier, University of Montpellier, Montpellier, France
13. Center for Genomic Regulation (CRG), Barcelona Institute of Science and Technology, Barcelona, Spain
14. Early Origin of the Child’s Health And Development (ORCHAD) team, Centre de Recherche Épidémiologie et Statistique Sorbonne Paris Cité (CRESS-UMR1153) Inserm, Université Paris Descartes, Villejuif, France
15. The Netherlands Organization for Applied Scientific Research (TNO), Delft, the Netherlands
16. Generation R Study Group,
17. Department of Epidemiology, and
18. Department of Pediatrics, Erasmus MC (Medical Centre), University Medical Center, Rotterdam, the Netherlands
19. Institute for Risk Assessment Sciences, Utrecht University, Utrecht, the Netherlands
20. Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Centre–Sophia Children’s Hospital, Rotterdam, the Netherlands
21. Department of Biosciences and Nutrition, Karolinska Institutet, Stockholm, Sweden
22. Unit of Chronic Disease Epidemiology, Department of Public Health Epidemiology, Swiss Tropical and Public Health Institute, Basel, Switzerland
23. University of Basel, Basel, Switzerland
24. Team of Environmental Epidemiology, Inserm and University Grenoble-Alpes, IAB (U1209), Grenoble, France
25. Division for Physical and Mental health, Norwegian Institute of Public Health, Oslo, Norway
26. Department of Women´s and Children´s Health, Karolinska Institutet, Stockholm, Sweden
27. Division of Intramural Research, National Institute of Environmental Health Sciences, National Institutes of Health, Department of Health and Human Services, Research Triangle Park, North Carolina, USA
28. Groningen Research Institute for Asthma and COPD (GRIAC), Beatrix Children’s Hospital, Department of Pediatric Pulmonology and Pediatric Allergology, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
29. Sachs Children’s Hospital, Stockholm, Sweden