About the Authors

Cuilin Zhang

zhangcu@mail.nih.gov

Affiliation Division of Epidemiology, Statistics, and Prevention Research, Eunice Kennedy Shriver National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland, United States of America

Chunfang Qiu

Affiliation Center for Perinatal Studies, Swedish Medical Center, Seattle, Washington, United States of America

Frank B. Hu

Affiliations Department of Epidemiology, Harvard School of Public Health, Boston, Massachusetts, United States of America, Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, United States of America, Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, United States of America

Robert M. David

Affiliation Metametrix Clinical Laboratory, Norcross, Georgia, United States of America

Rob M. van Dam

Affiliations Department of Nutrition, Harvard School of Public Health, Boston, Massachusetts, United States of America, Channing Laboratory, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, Massachusetts, United States of America

Alexander Bralley

Affiliation Metametrix Clinical Laboratory, Norcross, Georgia, United States of America

Michelle A. Williams

Affiliations Center for Perinatal Studies, Swedish Medical Center, Seattle, Washington, United States of America, Department of Epidemiology, University of Washington School of Public Health and Community Medicine, Seattle, Washington, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CZ CQ MAW. Performed the experiments: RD AB. Analyzed the data: CZ CQ MAW. Contributed reagents/materials/analysis tools: RD AB. Wrote the paper: CZ CQ FBH RvD MAW.