About the Authors

Gavin B. Stewart

gavin.stewart@york.ac.uk

Affiliation Centre for Reviews and Dissemination, University of York, York, United Kingdom

Douglas G. Altman

Affiliation Centre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom

Lisa M. Askie

Affiliation NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia

Lelia Duley

Affiliation Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, United Kingdom

Mark C. Simmonds

Affiliation Centre for Reviews and Dissemination, University of York, York, United Kingdom

Lesley A. Stewart

Affiliation Centre for Reviews and Dissemination, University of York, York, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: GS DA LA LD MS LS. Performed the experiments: GS MS. Analyzed the data: GS DA LA LD MS LS. Contributed reagents/materials/analysis tools: GS MS. Wrote the paper: GS DA LA LD MS LS.