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J Clin Epidemiol. 2013 Dec;66(12):1427-8. doi: 10.1016/j.jclinepi.2013.07.007. Epub 2013 Sep 10.

The efficiency of stepped wedge vs. cluster randomized trials: stepped wedge studies do not always require a smaller sample size.

Author information

1
Department of Public Health, University of Birmingham Edgbaston Campus, B15 2TT , Birmingham, UK. Electronic address: k.hemming@bham.ac.uk.
PMID:
24035495
DOI:
10.1016/j.jclinepi.2013.07.007
[Indexed for MEDLINE]

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