1 Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden [email protected].
2 Sachs' Children's Hospital, Södersjukhuset, Stockholm, Sweden.
3 Centre for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden.
4 INSERM UMR-S1124, Paris, France.
5 Université Paris Descartes, Sorbonne Paris cité 45 rue des Saints-Pères, Paris, France.
6 Hôpital Necker Enfants malades, AP-HP, Paris, France.
7 Advocacy and EU Affairs Dept, European Respiratory Society, Brussels, Belgium.
8 University of Groningen, University Medical Center Groningen, Dept of Epidemiology, Groningen, The Netherlands.
9 University of Groningen, University Medical Center Groningen, Groningen Research Institute for Asthma and COPD (GRIAC), Groningen, The Netherlands.
10 Institute of Occupational, Social and Environmental Medicine, Medical Faculty, Heinrich-Heine University Düsseldorf, Düsseldorf, Germany.
11 Research Center Borstel, Leibniz-Center for Medicine and Biosciences, Borstel, Germany, Member of the German Center for Lung Research (DZL).
12 Institute of Experimental Medicine, Christian-Albrechts-University of Kiel, Kiel, Germany.
13 University of Groningen, University Medical Center Groningen, Beatrix Children's Hospital, Dept of Pediatric Pulmonology and Pediatric Allergology, Groningen, The Netherlands.
14 Dept of Public Health and Clinical Medicine, Umeå University, Umeå, Sweden.