@inbook{1179145099, author={Nicole A. Bonk}, editor={Rosh, Adam J. and Barclay-Buchanan, Ciara J.}, title={Gastrointestinal Bleeding}, booktitle={Emergency Medicine PreTest® Self-Assessment and Review, 5e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2021}, url={accessemergencymedicine.mhmedical.com/content.aspx?aid=1179145099} }