@inbook{1126247328, author={Paul Mayo and Seth Koenig}, editor={Hall, Jesse B. and Schmidt, Gregory A. and Kress, John P.}, title={ICU Ultrasonography}, booktitle={Principles of Critical Care, 4e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessmedicine.mhmedical.com/content.aspx?aid=1126247328} }