@inbook{1000183133, author={Kristin A. Carmody and Christopher L. Moore and David Feller-Kopman}, title={}, booktitle={Handbook of Critical Care and Emergency Ultrasound}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2011}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1000183133} }