@inbook{56627384, author={Robert Gaiser}, editor={Longnecker, David E. and Brown, David L. and Newman, Mark F. and Zapol, Warren M.}, title={Chapter 22. Evaluation of the Pregnant Patient}, booktitle={Anesthesiology, 2e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2012}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=56627384} }