@inbook{56622740, author={James C. Phero and Yash J. Patil and William E. Hurford}, editor={Longnecker, David E. and Brown, David L. and Newman, Mark F. and Zapol, Warren M.}, title={Chapter 10. Evaluation of the Patient with a Difficult Airway}, booktitle={Anesthesiology, 2e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2012}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=56622740} }