@inbook{3416873, author={Joseph Audette and Walter Frontera}, editor={Warfield, Carol A. and Bajwa, Zahid H.}, title={Chapter 43. Assessment and Treatment of Pain in Sports Injuries}, booktitle={Principles & Practice of Pain Medicine, 2e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2004}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=3416873} }