@inbook{7004204, author={Boris Sudel, MD and B U.K. Li, MD}, editor={Goodman, Denise M. and Green, Thomas P. and Unti, Sharon M. and Powell, Elizabeth C.}, title={Chapter 65. Esophagogastroduodenoscopy}, booktitle={Current Procedures: Pediatrics}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2007}, url={accesspediatrics.mhmedical.com/content.aspx?aid=7004204} }