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How large are the consequences of covariate imbalance in cluster randomized trials: a simulation study with a continuous outcome and a binary covariate at the cluster level

Crossref DOI link: https://doi.org/10.1186/s12874-016-0182-7

Published Online: 2016-07-11

Published Print: 2016-12

Update policy: https://doi.org/10.1007/springer_crossmark_policy