Intended for healthcare professionals

Correction

Correction: Sample size and power for comparing two or more treatment effects

British Medical Journal 1989; 299 doi: https://doi.org/10.1136/bmj.299.6706.1018 (Published 21 October 1989) Cite this as: British Medical Journal 1989;299:1018

Article usage

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Usage statistics: February 2009 to October 2019

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