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Extension of the Rank Sum Test for Clustered Data: Two-Group Comparisons with Group Membership Defined at the Subunit Level
Rosner, Bernard, (2006)
Incorporation of Clustering Effects for the Wilcoxon Rank Sum Test: A Large-Sample Approach
Rosner, Bernard, (2003)
Power and Sample Size Estimation for the Clustered Wilcoxon Test
Rosner, Bernard, (2011)