@inbook{1182426610, author={Shareen Y. El-Ibiary and Sarah P. Shrader and Kelly R. Ragucci}, editor={DiPiro, Joseph T. and Yee, Gary C. and Posey, L. Michael and Haines, Stuart T. and Nolin, Thomas D. and Ellingrod, Vicki}, title={Contraception}, booktitle={Pharmacotherapy: A Pathophysiologic Approach, 11e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2020}, url={accesspharmacy.mhmedical.com/content.aspx?aid=1182426610} }