About the Authors

Brian T. Bateman

BBateman@partners.org

Affiliation Division of Obstetric Anesthesia, Department of Anesthesia, Critical Care, and Pain Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America

Kate M. Shaw

Affiliation Division for Heart Disease and Stroke Prevention, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Elena V. Kuklina

Affiliation Division for Heart Disease and Stroke Prevention, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

William M. Callaghan

Affiliation Division of Reproductive Health, National Center for Chronic Disease Prevention and Health Promotion, Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Ellen W. Seely

Affiliation Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, United States of America

Sonia Hernández-Díaz

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BTB KMS EVK WMC EWS SHD. Performed the experiments: BTB KMS EVK. Analyzed the data: BTB KMS EVK. Contributed reagents/materials/analysis tools: KMS EVK. Wrote the paper: BTB KMS EVK WMC EWS SHD.