@inbook{1184195571, author={Ryan P. Merkow and Alfred W. Rademaker and Karl Y. Bilimoria}, editor={Livingston, Edward H. and Lewis, Roger J.}, title={Practical Guide to Surgical Data Sets: National Cancer Database (NCDB)}, booktitle={JAMA Guide to Statistics and Methods}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2019}, url={jamaevidence.mhmedical.com/content.aspx?aid=1184195571} }