@article{cd2bab2924a24a6094d4656665f8213b,
title = "The efficiency of stepped wedge vs. cluster randomized trials: stepped wedge studies do not always require a smaller sample size",
keywords = "Depression, Humans, Randomized Controlled Trials as Topic, Sample Size",
author = "Karla Hemming and Alan Girling",
year = "2013",
month = dec,
doi = "10.1016/j.jclinepi.2013.07.007",
language = "English",
volume = "66",
pages = "1427--8",
journal = "Journal of Clinical Epidemiology",
issn = "0895-4356",
publisher = "Elsevier",
number = "12",
}