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. 1981 Dec;114(6):906-14.
doi: 10.1093/oxfordjournals.aje.a113261.

Randomization by cluster. Sample size requirements and analysis

A Donner, N Birkett, C Buck

Randomization by cluster. Sample size requirements and analysis

A Donner et al. Am J Epidemiol. 1981 Dec.
No abstract available

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