Authors: Ian R White, Tra My Pham, Matteo Quartagno, Tim P Morris
MRC Clinical Trials Unit at UCL
This article was first available as a preprint (link) and has now been published by the International Journal of Epidemiology (link).
The files here are the same as those provided in the supplementary materials on the IJE web site, but the file names here are the same as the file names in the article.