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    Hastings Cent Rep. 2008 Sep-Oct;38(5):39-48.

    Comparing drug effectiveness at health plans: the ethics of cluster randomized trials.

    Source

    Harvard Medical School, USA.

    Abstract

    "Cluster randomized trials," in which groups of patients are randomly assigned to different therapeutic interventions, provide a powerful way of evaluating drugs. CRTs have not been widely used, in good part because of concerns about whether patients must give informed consent to participate in them. A better understanding of how CRTs fit into clinical practice resolves the concerns.

    Comment in

    PMID:
    18947140
    [PubMed - indexed for MEDLINE]

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