@inbook{56302282, author={Paul H. Mayo}, editor={Carmody, Kristin A. and Moore, Christopher L. and Feller-Kopman, David}, title={Chapter 25. Approach to the Patient with Undifferentiated Hypotension}, 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=56302282} }