@inbook{1138634019, author={Robyn Horsager, MD and Scott W. Roberts, MD and Vanessa L. Rogers, MD and Patricia C. Santiago-Muñoz, MD and Kevin C. Worley, MD and Barbara L. Hoffman, MD}, title={Abortion}, booktitle={Williams Obstetrics Study Guide, 24e}, publisher={McGraw-Hill Education|Medical}, address={New York, NY}, year={2014}, url={accessmedicine.mhmedical.com/content.aspx?aid=1138634019} }