About the Authors

Julie A. Schmidt

julie.schmidt@ceu.ox.ac.uk

Affiliation Cancer Epidemiology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

Francesca L. Crowe

Affiliation Cancer Epidemiology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

Paul N. Appleby

Affiliation Cancer Epidemiology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

Timothy J. Key

Affiliation Cancer Epidemiology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

Ruth C. Travis

Affiliation Cancer Epidemiology Unit, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Consultation for statistical analysis: PNA. Recruitment of EPIC-Oxford participants: TJK. Interpretation of results and review of the manuscript: JAS FLC PNA TJK RCT. Conceived and designed the experiments: JAS FLC TJK RCT. Analyzed the data: JAS. Contributed reagents/materials/analysis tools: PNA. Wrote the paper: JAS.