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Research Article
Randomisation by cluster and the problem of social class bias.

Authors

    Citation

    Alexander F, Roberts MM, Lutz W, et al
    Randomisation by cluster and the problem of social class bias.
    Journal of Epidemiology & Community Health 1989;43:29-36.

    Publication history

    • First published March 1, 1989.
    Online issue publication 
    April 27, 2016

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