Grayling, M., Wason, J., & Mander, A. (2015). Stepped-wedge cluster randomised trials: Where, when and why? Trials.
Citação norma ChicagoGrayling, Michael, James Wason, and Adrian Mander. "Stepped-wedge Cluster Randomised Trials: Where, When and Why?" Trials 2015.
MLA citiranjeGrayling, Michael, James Wason, and Adrian Mander. "Stepped-wedge Cluster Randomised Trials: Where, When and Why?" Trials 2015.
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