About the Authors

Carsten Heilmann

Affiliation Paediatric Clinic II, National University Hospital, Rigshospitalet, Copenhagen, Denmark

Philippe Grandjean

To whom correspondence should be addressed. E-mail: pgrand@hsph.harvard.edu

Affiliations Institute of Public Health, University of Southern Denmark, Odense, Denmark , Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America

Pál Weihe

Affiliations Institute of Public Health, University of Southern Denmark, Odense, Denmark , Department of Occupational Medicine and Public Health, Tórshavn, Faroe Islands, Denmark

Flemming Nielsen

Affiliation Institute of Public Health, University of Southern Denmark, Odense, Denmark

Esben Budtz-Jørgensen

Affiliations Institute of Public Health, University of Southern Denmark, Odense, Denmark , Department of Biostatistics, Institute of Public Health, University of Copenhagen, Copenhagen, Denmark

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

CH, PG, PW, and EBJ designed the study. CH and PW supervised the clinical sampling. FN conducted the chemical analyses. EBJ did the statistical analyses. CH, PG, PW, FN, and EBJ wrote the paper.