@inbook{56965495, author={Simi Gupta, MD and Ashley S. Roman, MD, MPH}, editor={DeCherney, Alan H. and Nathan, Lauren and Laufer, Neri and Roman, Ashley S.}, title={Chapter 11. Imaging in Obstetrics}, 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=56965495} }