@inbook{1125179381, author={Kevin J. Knoop and Lawrence B. Stack and Alan B. Storrow and R. Jason Thurman}, title={}, booktitle={The Atlas of Emergency Medicine, 4e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accessemergencymedicine.mhmedical.com/content.aspx?aid=1125179381} }