About the Authors

Jim McCambridge

Jim.McCambridge@lshtm.ac.uk

Affiliation Faculty of Public Health & Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom

Ben Hawkins

Affiliation Faculty of Public Health & Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom

Chris Holden

Affiliations Faculty of Public Health & Policy, London School of Hygiene & Tropical Medicine, London, United Kingdom, Department of Social Policy & Social Work, University of York, York, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JM. Performed the experiments: JM BH. Analyzed the data: JM BH. Contributed reagents/materials/analysis tools: JM BH CH. Wrote the first draft of the manuscript: JM. Contributed to the writing of the manuscript: JM BH CH. ICMJE criteria for authorship read and met: JM BH CH. Agree with manuscript results and conclusions: JM BH CH.