About the Authors
- Gavin B. Stewart, Mark C. Simmonds, Lesley A. Stewart
- Centre for Reviews and Dissemination, University of York, York, United Kingdom
- Douglas G. Altman
- Centre for Statistics in Medicine, University of Oxford, Oxford, United Kingdom
- Lisa M. Askie
- NHMRC Clinical Trials Centre, University of Sydney, Sydney, Australia
- Lelia Duley
- Nottingham Clinical Trials Unit, University of Nottingham, Nottingham, United Kingdom
The authors have declared that no competing interests exist.
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.