About the Authors
- Peter C Gøtzsche, Asbjørn Hróbjartsson, Helle Krogh Johansen, Mette T Haahr
- Nordic Cochrane Centre, Copenhagen, Denmark
- Douglas G Altman
- Centre for Statistics in Medicine, Oxford, United Kingdom
- An-Wen Chan
- Department of Medicine, University of Toronto, Canada
The authors have declared that no competing interests exist.
PCG initiated the study; PCG, AH, HKJ, MTH, DGA, and AWC contributed to study design, acquisition and interpretation of data, and writing the paper. PCG is guarantor.