@inbook{1210295136, author={Jeffrey L. Saver and Roger J. Lewis}, editor={Livingston, Edward H. and Lewis, Roger J.}, title={Number Needed to Treat: Conveying the Likelihood of a Therapeutic Effect}, booktitle={JAMA Guide to Statistics and Methods}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2019}, url={jamaevidence.mhmedical.com/content.aspx?aid=1210295136} }