@inbook{1199673769, author={Yunping Li and Scott A. Shainker}, editor={Hess, Philip E. and Li, Yunping and Kowalczyk, John J. and Stiles, Justin K.}, title={Cerclage}, booktitle={Obstetric Anesthesia: Quick References & Practical Guides}, publisher={McGraw Hill}, address={New York, NY}, year={2023}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1199673769} }