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Research Article

Use of Modern Contraception by the Poor Is Falling Behind

  • Emmanuela Gakidou mail,

    To whom correspondence should be addressed. E-mail: emmanuela_gakidou@harvard.edu

    Affiliations: Harvard Initiative for Global Health, Harvard University, Cambridge, Massachusetts, United States of America, Institute for Quantitative Social Science, Harvard University, Cambridge, Massachusetts, United States of America

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  • Effy Vayena

    Affiliation: Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland

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  • Published: February 06, 2007
  • DOI: 10.1371/journal.pmed.0040031

About the Authors

Emmanuela Gakidou
Harvard Initiative for Global Health, Harvard University, Cambridge, Massachusetts, United States of America
Emmanuela Gakidou
Institute for Quantitative Social Science, Harvard University, Cambridge, Massachusetts, United States of America
Effy Vayena
Department of Reproductive Health and Research, World Health Organization, Geneva, Switzerland

Corresponding Author

Email: emmanuela_gakidou@harvard.edu

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

EG and EV developed the idea, conducted the literature reviews, conducted the data analysis, and contributed to the manuscript. EV is a staff member of the World Health Organization. She alone is responsible for the views expressed in this publication, and they do not necessarily represent the decisions, policy, or views of the World Health Organization.