1 Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden; Asthma and Allergy Clinic S:t Göran, Praktikertjänst, Stockholm, Sweden. Electronic address: marit.westman@ki.se.
2 Department of Women's and Children's Health, Karolinska Institutet, Stockholm, Sweden; Pediatric Allergy and Pulmonology Unit at Astrid Lindgren Children's Hospital, Karolinska University Hospital, Stockholm, Sweden.
3 Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden; Department of Dermatology and Sexual Health, Södersjukhuset, Stockholm, Sweden; Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
4 Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden.
5 Department of Medicine Solna, Division of Immunology and Allergy, Karolinska Institutet and Karolinska University Hospital, Stockholm, Sweden.
6 Department of Women's and Children's Health, Uppsala University, Uppsala, Sweden; Thermo Fisher Scientific, Division of ImmunoDiagnostics, Uppsala, Sweden.
7 Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden; Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden.
8 Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden.
9 Department of Clinical Science and Education Södersjukhuset, Karolinska Institutet, Stockholm, Sweden; Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden; Sachs' Children and Youth Hospital, Södersjukhuset, Stockholm, Sweden.