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"Cross-sectional" stepped wedge designs always reduce the required sample size when there is no time effect.

ABSTRACT:

SUBMITTER: Zhou X 

PROVIDER: S-EPMC5517056 | biostudies-literature | 2017 Mar

REPOSITORIES: biostudies-literature

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"Cross-sectional" stepped wedge designs always reduce the required sample size when there is no time effect.

Zhou Xin X   Liao Xiaomei X   Spiegelman Donna D  

Journal of clinical epidemiology 20170116

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