@inbook{1125286141, author={Barbara L. Hoffman and John O. Schorge and Karen D. Bradshaw and Lisa M. Halvorson and Joseph I. Schaffer and Marlene M. Corton}, title={Endometriosis}, booktitle={Williams Gynecology, 3e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2016}, url={accessmedicine.mhmedical.com/content.aspx?aid=1125286141} }