@inbook{57021300, author={Patricia L. Roberts}, editor={Zinner, Michael J. and Ashley, Stanley W.}, title={Chapter 35B. Perspective on Inflammatory Bowel Disease (Ulcerative Colitis and Crohn's Disease)}, booktitle={Maingot's Abdominal Operations, 12e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2013}, url={accesssurgery.mhmedical.com/content.aspx?aid=57021300} }