@inbook{1177748272,
author={Maie El-Sourady},
title={Gastroenterology},
booktitle={Vanderbilt IM/Peds Review Questions},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2019},
url={accessmedicine.mhmedical.com/content.aspx?aid=1177748272}
}