We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleStatistics notes: Concealing treatment allocation in randomised trials.AuthorsAltman, D G; Schulz, K FPublicationBMJ (Clinical research ed.), 2001, Vol 323, Issue 7310, p446ISSN0959-8138Publication typeJournal ArticleDOI10.1136/bmj.323.7310.446