@inbook{6973163, author={Donald E. Greydanus and Cynthia Feucht}, editor={Patel, Dilip R. and Greydanus, Donald E. and Baker, Robert J.}, title={Chapter 7. Performance-Enhancing Drugs and Supplements}, booktitle={Pediatric Practice: Sports Medicine}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2009}, url={accessphysiotherapy.mhmedical.com/content.aspx?aid=6973163} }