@inbook{1198804240, author={Nicole E. Cieri-Hutcherson}, editor={Matthias, Kathryn R. and Katz, Michael D.}, title={Anovulatory Bleeding}, booktitle={Pharmacotherapy Principles and Practice Study Guide, 6e}, publisher={McGraw Hill}, address={New York, NY}, year={2023}, url={ppp.mhmedical.com/content.aspx?aid=1198804240} }