@inbook{55944664, author={Eyad Hanna}, editor={Bishop, Warren P.}, title={Chapter 6. Gastrointestinal Bleeding}, booktitle={Pediatric Practice: Gastroenterology}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2010}, url={accesspediatrics.mhmedical.com/content.aspx?aid=55944664} }