@inbook{6976856, author={Robert J. Baker}, editor={Patel, Dilip R. and Greydanus, Donald E. and Baker, Robert J.}, title={Chapter 17. Gastrointestinal Conditions}, booktitle={Pediatric Practice: Sports Medicine}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2009}, url={accessphysiotherapy.mhmedical.com/content.aspx?aid=6976856} }