@inbook{6982963, author={Daniel G. Constance and Robert J. Baker}, editor={Patel, Dilip R. and Greydanus, Donald E. and Baker, Robert J.}, title={Chapter 38. Environment-Related Conditions}, booktitle={Pediatric Practice: Sports Medicine}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2009}, url={accesspediatrics.mhmedical.com/content.aspx?aid=6982963} }