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Understanding controlled trials

All Understanding controlled trials articles from the BMJ

Education and debate: Randomisation methods: concealment

Education and debate: Baseline imbalance in randomised controlled trials

Clinical Review: Randomisation methods in controlled trials

Education and debate: What outcomes should be measured?

Education and debate: Randomising groups of patients

General practice: Understanding controlled trials Crossover trials

Clinical Review: What is Zelen's design?

General practice: Understanding controlled trials: What is a patient preference trial?

Clinical Review: Understanding controlled trials: What are pragmatic trials?

General practice: Understanding controlled trials: Why are randomised controlled trials important?