Additional file 2: of Understanding the cluster randomised crossover design: a graphical illustration of the components of variation and a sample size tutorial

Binary outcomes sample size Stata do file. Stata do file to perform sample size calculations for binary outcomes using formulae presented in the ‘Performing a sample size calculation’ section, for a given set of sample size parameters. (DO 2 kb)二分类结局样本量Stata命令文件（Stata do-file）。本Stata命令文件可依据「样本量计算实施」章节中所载公式，针对给定的一组样本量参数，完成二分类结局的样本量计算。（文件格式：DO，大小：2 KB）