About the Authors

Xuefeng Ren

Current address: Department of Social and Preventive Medicine, School of Public Health and Health Professions, State University of New York at Buffalo, Buffalo, New York, United States of America

Affiliation Genes and Environment Laboratory, Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America

Sophia Lim

Affiliation Genes and Environment Laboratory, Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America

Zhiying Ji

Affiliation Genes and Environment Laboratory, Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America

Jessica Yuh

Affiliation Genes and Environment Laboratory, Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America

Vivian Peng

Affiliation Genes and Environment Laboratory, Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America

Martyn T. Smith

Affiliation Genes and Environment Laboratory, Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America

Luoping Zhang

luoping@berkeley.edu

Affiliation Genes and Environment Laboratory, Division of Environmental Health Sciences, School of Public Health, University of California, Berkeley, California, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: XR MTS LZ. Performed the experiments: XR SL ZJ JY VP. Analyzed the data: XR SL LZ. Contributed reagents/materials/analysis tools: XR LZ. Wrote the paper: XR SL LZ.