@inbook{1157247012, author={Sonia Friedman and Richard S. Blumberg}, editor={Jameson, J. Larry and Fauci, Anthony S. and Kasper, Dennis L. and Hauser, Stephen L. and Longo, Dan L. and Loscalzo, Joseph}, title={Inflammatory Bowel Disease}, booktitle={Harrison's Principles of Internal Medicine, 20e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accesspharmacy.mhmedical.com/content.aspx?aid=1157247012} }