@inbook{1135704466, author={Brian T. Wessman and Kyle J. Gunnerson and Emanuel P. Rivers and Debra Perina}, editor={Farcy, David A. and Chiu, William C. and Marshall, John P. and Osborn, Tiffany M.}, title={History and Update in Critical Care Certification}, booktitle={Critical Care Emergency Medicine, 2e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accessemergencymedicine.mhmedical.com/content.aspx?aid=1135704466} }