@inbook{1122460458, author={Benjamin Sahn and Petar Mamula}, editor={Shah, Samir S. and Zaoutis, Lisa B. and Catallozzi, Marina and Frank, Gary}, title={Gastroenterology}, booktitle={The Philadelphia Guide: Inpatient Pediatrics, 2e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accesspediatrics.mhmedical.com/content.aspx?aid=1122460458} }