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Review
. 1998 Jan 17;316(7126):201.
doi: 10.1136/bmj.316.7126.201.

Understanding Controlled Trials. Why Are Randomised Controlled Trials Important?

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Free PMC article
Review

Understanding Controlled Trials. Why Are Randomised Controlled Trials Important?

B Sibbald et al. BMJ. .
Free PMC article

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