@inbook{56631465, author={John C. Keifer and Cecil O. Borel}, editor={Longnecker, David E. and Brown, David L. and Newman, Mark F. and Zapol, Warren M.}, title={Chapter 33. Intraoperative Neurologic Monitoring}, booktitle={Anesthesiology, 2e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2012}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=56631465} }