Cluster randomised trials: time for improvement. The implications of adopting a cluster design are still largely being ignored (Q42758993)
scientific article published on October 1998
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(P577) Thursday, October 1, 1998
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(P1476) "Cluster randomised trials: time for improvement. The implications of adopting a cluster design are still largely being ignored" (language: en)
(P2093) M K Campbell
J M Grimshaw
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description scientific article published on October 1998

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