@inbook{1135699515, author={Jason C. Wagner}, editor={Farcy, David A. and Chiu, William C. and Marshall, John P. and Osborn, Tiffany M.}, title={Approach to the Difficult Airway}, booktitle={Critical Care Emergency Medicine, 2e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accessemergencymedicine.mhmedical.com/content.aspx?aid=1135699515} }