About the Authors

Sarah J. Hawkes

s.hawkes@ucl.ac.uk

Affiliation University College London Institute for Global Health, University College London, London, United Kingdom

Gabriela B. Gomez

Affiliations Amsterdam Institute for Global Health and Development, Amsterdam, The Netherlands, School of Public Health, Imperial College London, London, United Kingdom

Nathalie Broutet

Affiliation World Health Organization, Geneva, Switzerland

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SH GG NB. Analyzed the data: SH GG. Contributed reagents/materials/analysis tools: SH GG. Wrote the paper: SH GG NB.