About the Authors

John Gallacher

Gallacher@cf.ac.uk

Affiliation Institute of Primary Care and Public Health, Cardiff University, Cardiff, United Kingdom

Rory Collins

Affiliation Clinical Trials Service Unit, Oxford University, Oxford, United Kingdom

Paul Elliott

Affiliation Department of Epidemiology and Biostatistics, Imperial College, London, United Kingdom

Stephen Palmer

Affiliation Institute of Primary Care and Public Health, Cardiff University, Cardiff, United Kingdom

Paul Burton

Affiliation Department of Health Sciences, Leicester University, Leicester, United Kingdom

Clive Mitchell

Affiliation Institute of Primary Care and Public Health, Cardiff University, Cardiff, United Kingdom

Gareth John

Affiliation NHS Wales Information Service, Cardiff, United Kingdom

Ronan Lyons

Affiliation Institute of Life Science, Swansea University, Swansea, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JG RC PE SP PB. Performed the experiments: JG CM GJ. Analyzed the data: JG CM. Contributed reagents/materials/analysis tools: CM GJ RL. Wrote the paper: JG RC PE SP PB CM GJ RL.