About the Authors

Koert N. J. Burger

Affiliations National Institute for Public Health and the Environment, Bilthoven, The Netherlands, Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands

Joline W. J. Beulens

Affiliation Julius Center for Health Sciences and Primary Care, University Medical Center Utrecht, Utrecht, The Netherlands

Jolanda M. A. Boer

Affiliation National Institute for Public Health and the Environment, Bilthoven, The Netherlands

Annemieke M. W. Spijkerman

Affiliation National Institute for Public Health and the Environment, Bilthoven, The Netherlands

Daphne L. van der A

Daphne.van.der.A@rivm.nl

Affiliation National Institute for Public Health and the Environment, Bilthoven, The Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KB JWJB DvdA. Performed the experiments: KB JWJB DvdA. Analyzed the data: KB JWJB DvdA. Contributed reagents/materials/analysis tools: JMAB AMS. Wrote the paper: KB JWJB DvdA.