@inbook{1214251978, author={Kristine Broglio}, editor={Livingston, Edward H. and Lewis, Roger J.}, title={Randomization in Clinical Trials: Permuted Blocks and Stratification}, booktitle={JAMA Guide to Statistics and Methods}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2019}, url={jamaevidence.mhmedical.com/content.aspx?aid=1214251978} }