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Show Notes
Allocation concealment - blinding which arm of a trial a patient is randomised to - is being questioned in an analysis published on thebmj.com.
David Torgerson, director of the York Trials Unit at the university of York and colleagues have been looking at the way in which trials do this randomisation, and how they subsequently report it - and have found both lacking.
Read the full analysis:
http://www.bmj.com/content/355/bmj.i5663