About the Authors

Guy Harling

Affiliation Department of Society, Human Development and Health, Harvard School of Public Health, Boston, Massachusetts, United States of America

Wezi Msisha

Affiliation Europe and Central Asia Human Development Sector, The World Bank, Washington, D.C., United States of America

S. V. Subramanian

svsubram@hsph.harvard.edu

Affiliation Department of Society, Human Development and Health, 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: WMM SVS. Analyzed the data: GH. Contributed reagents/materials/analysis tools: SVS. Wrote the paper: GH WMM SVS.