“Cross-sectional” stepped wedge designs always reduce the required sample size when there is no time effect
Zhou X, Liao X, Spiegelman D. “Cross-sectional” stepped wedge designs always reduce the required sample size when there is no time effect. Journal Of Clinical Epidemiology 2017, 83: 108-109. PMID: 28093263, PMCID: PMC5517056, DOI: 10.1016/j.jclinepi.2016.12.011.Peer-Reviewed Original Research
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