@inbook{1153310007, author={Edward J. Hoffenberg and Glenn T. Furuta and Gregory Kobak and Thomas Walker and Jason Soden and Robert E. Kramer and David Brumbaugh}, editor={Hay, Jr., William W. and Levin, Myron J. and Deterding, Robin R. and Abzug, Mark J.}, title={Gastrointestinal Tract}, booktitle={Current Diagnosis & Treatment: Pediatrics, 24e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accessmedicine.mhmedical.com/content.aspx?aid=1153310007} }