About the Authors

Mark P. Little

mark.little@imperial.ac.uk

Affiliation Department of Epidemiology and Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom

Anna Gola

Affiliation Department of Epidemiology and Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom

Ioanna Tzoulaki

Affiliation Department of Epidemiology and Public Health, Faculty of Medicine, Imperial College London, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MPL. Performed the experiments: MPL. Analyzed the data: MPL AG IT. Wrote the paper: MPL AG IT.