About the Authors

Hyunok Choi

hchoi@albany.edu

Affiliation Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America

Lu Wang

Affiliation Department of Biostatistics, The University of Michigan, Ann Arbor, Michigan, United States of America

Xihong Lin

Affiliation Department of Biostatistics, Harvard School of Public Health, Boston, Massachusetts, United States of America

John D. Spengler

Affiliation Department of Environmental Health, Harvard School of Public Health, Boston, Massachusetts, United States of America

Frederica P. Perera

Affiliation Columbia Center for Children's Environmental Health, Mailman School of Public Health, New York, New York, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JDS FPP. Performed the experiments: HC LW XL. Analyzed the data: HC LW XL. Wrote the paper: HC LW.