@inbook{1172107275, author={David Brumbaugh and Glenn T. Furuta and Edward J. Hoffenberg and Gregory E. Kobak and Robert E. Kramer and Seth Septer and Mary Shull and Jason Soden and Thomas Walker}, editor={Hay Jr., William W. and Levin, Myron J. and Abzug, Mark J. and Bunik, Maya}, title={Gastrointestinal Tract}, booktitle={Current Diagnosis & Treatment: Pediatrics, 25e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2020}, url={accesspediatrics.mhmedical.com/content.aspx?aid=1172107275} }