About the Authors

Anke G. Posthumus

a.posthumus@erasmusmc.nl

Affiliation Erasmus University Medical Centre, Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Rotterdam, the Netherlands

Vera L. N. Schölmerich

Affiliations Erasmus University Medical Centre, Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Rotterdam, the Netherlands, VU University Amsterdam, Department of Organization Sciences, Amsterdam, the Netherlands

Eric A. P. Steegers

Affiliation Erasmus University Medical Centre, Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Rotterdam, the Netherlands

Ichiro Kawachi

Affiliation Harvard School of Public Health, Department of Social and Behavioral Sciences, Boston, Massachusetts, United States of America

Semiha Denktaş

Affiliation Erasmus University Medical Centre, Department of Obstetrics and Gynecology, Division of Obstetrics and Prenatal Medicine, Rotterdam, the Netherlands

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: AGP VLNS EAPS IK SD. Analyzed the data: AGP VLNS. Wrote the paper: AGP VLNS EAPS IK SD. Interpretation of the data: AGP VLNS IK SD.