Intended for healthcare professionals

Education And Debate Understanding controlled trials

Randomisation methods: concealment

BMJ 1999; 319 doi: https://doi.org/10.1136/bmj.319.7206.375 (Published 07 August 1999) Cite this as: BMJ 1999;319:375

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Usage statistics: July 2003 to June 2021

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Apr 20211622711
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Total11359120014148