@inbook{1160042281, author={Heather Yeo and Alessandro Fichera and Roger D. Hurst and Fabrizio Michelassi}, editor={Zinner, Michael J. and Ashley, Stanley W. and Hines, O. Joe}, title={Crohn’s Disease}, booktitle={Maingot's Abdominal Operations, 13e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2019}, url={accesssurgery.mhmedical.com/content.aspx?aid=1160042281} }