About the Authors
- Paul Mathews
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* E-mail: pmathews@essex.ac.uk
Affiliation Institute of Social and Economic Research, University of Essex, Colchester, United Kingdom
- Rebecca Sear
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Affiliation Department of Population Health, London School of Hygiene and Tropical Medicine, London, United Kingdom
Competing Interests
The authors have declared that no competing interests exist.
Author Contributions
Conceived and designed the experiments: PM RS. Analyzed the data: PM. Wrote the paper: PM RS.