@inbook{57850491, author={Kim E. Barrett}, title={Chapter 6. Intestinal Mucosal Immunology and Ecology}, booktitle={Gastrointestinal Physiology, 2e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2014}, url={accessmedicine.mhmedical.com/content.aspx?aid=57850491} }