About the Authors

Tomas Andersson

Affiliations Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden, Center for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden

Anders Ahlbom

Affiliations Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden, Center for Occupational and Environmental Medicine, Stockholm County Council, Stockholm, Sweden

Sofia Carlsson

Sofia.carlsson@ki.se

Affiliation Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: TA. Wrote the paper: TA AA SC.