About the Authors
- Cicely Marston
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* E-mail: Cicely.Marston@lshtm.ac.uk
Affiliation Senior Lecturer, Department of Social and Environmental Health Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Alicia Renedo
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Affiliation Research Fellow, Department of Social and Environmental Health Research, London School of Hygiene and Tropical Medicine, London, United Kingdom
- C. R. McGowan
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Affiliation Doctoral Student, Department of Global Health and Development, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Anayda Portela
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Affiliation Technical Officer, Department of Maternal, Newborn, Child and Adolescent Health, World Health Organization, Geneva, Switzerland
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Designed the searches: CM. Selected papers: CM AR AP. Conducted the searches: CRM. Managed the data: CRM. Commented on the text: AR CRM AP. Analyzed the data: CM AR AP. Wrote the paper: CM AR AP.