Power and money in cluster randomized trials: when is it worth measuring a covariate?

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MM-StatinMed 2006
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@article{cff6e120a8cb4cc4a8d1d53151aed130,

title = "Power and money in cluster randomized trials: when is it worth measuring a covariate?",

author = "M. Moerbeek",

year = "2006",

language = "Undefined/Unknown",

volume = "25",

pages = "2607--2617",

journal = "Statistics in Medicine",

issn = "0277-6715",

publisher = "John Wiley and Sons Ltd",

number = "15",

}