About the Authors
- Mark Pennington
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Affiliation Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Richard Grieve
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Affiliation Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Nick Black
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Affiliation Department of Health Services Research and Policy, London School of Hygiene and Tropical Medicine, London, United Kingdom
- Jan H. van der Meulen
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* E-mail: jan.vandermeulen@lshtm.ac.uk
Affiliation Department of Health Services Research and Policy, 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: MP RG NB JM. Analyzed the data: MP. Wrote the paper: MP JM. Commented on and revised drafts: MP RG NB JM.