About the Authors

Jessica D. Jones Nielsen

Affiliation Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom

Anthony A. Laverty

Affiliation Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom

Christopher Millett

Affiliation Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom

Arch G. Mainous III

Affiliation Department of Family Medicine, Medical University of South Carolina, Charleston, South Carolina, United States of America

Azeem Majeed

Affiliation Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom

Sonia Saxena

s.saxena@imperial.ac.uk

Affiliation Department of Primary Care and Public Health, School of Public Health, Imperial College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JJN AL CM SS. Analyzed the data: JJN AL. Wrote the paper: JJN AL SS. Revised the manuscript for important intellectual content: JJN AL CM A. Mainous A. Majeed SS.