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Understanding controlled trials
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All Understanding controlled trials articles from the BMJ
Education and debate: Randomisation methods: concealment
Published 7 August 1999
Education and debate: Baseline imbalance in randomised controlled trials
Published 17 July 1999
Clinical Review: Randomisation methods in controlled trials
Published 7 November 1998
Education and debate: What outcomes should be measured?
Published 17 October 1998
Education and debate: Randomising groups of patients
Published 20 June 1998
General practice: Understanding controlled trials Crossover trials
Published 6 June 1998
Clinical Review: What is Zelen's design?
Published 14 February 1998
General practice: Understanding controlled trials: What is a patient preference trial?
Published 31 January 1998
Clinical Review: Understanding controlled trials: What are pragmatic trials?
Published 24 January 1998
Published 17 January 1998