@inbook{56968467, author={John S. McDonald, MD and Biing-Jaw Chen, MD and Wing-Fai Kwan, MD}, editor={DeCherney, Alan H. and Nathan, Lauren and Laufer, Neri and Roman, Ashley S.}, title={Chapter 24. Obstetric Analgesia & Anesthesia}, booktitle={CURRENT Diagnosis & Treatment: Obstetrics & Gynecology, 11e}, publisher={The McGraw-Hill Companies}, address={New York, NY}, year={2013}, url={obgyn.mhmedical.com/content.aspx?aid=56968467} }