@inbook{1108522328, author={Christina M. Coleman and Pamela Flood}, editor={Santos, Alan C. and Epstein, Jonathan N. and Chaudhuri, Kallol}, title={Progress of Labor and Delivery}, booktitle={Obstetric Anesthesia}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessanesthesiology.mhmedical.com/content.aspx?aid=1108522328} }