@inbook{1159953212, author={Shobha H. Mehta and Robert J. Sokol}, editor={DeCherney, Alan H. and Nathan, Lauren and Laufer, Neri and Roman, Ashley S.}, title={Assessment of At-Risk Pregnancy}, booktitle={CURRENT Diagnosis & Treatment: Obstetrics & Gynecology, 12e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2019}, url={obgyn.mhmedical.com/content.aspx?aid=1159953212} }