@inbook{1182908716,
author={Steven H. Erdman and Edward J. Hoffenberg},
editor={Kline, Mark W.},
title={Polyps and Tumors of the Gastrointestinal Tract},
booktitle={Rudolph's Pediatrics, 23e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2018},
url={accesspediatrics.mhmedical.com/content.aspx?aid=1182908716}
}