@inbook{1170723457, author={Barbara L. Hoffman and John O. Schorge and Lisa M. Halvorson and Cherine A. Hamid and Marlene M. Corton and Joseph I. Schaffer}, title={Notice}, booktitle={Williams Gynecology, 4e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2020}, url={obgyn.mhmedical.com/content.aspx?aid=1170723457} }