@inbook{1115690004, author={Michael R. Foley and Thomas H. Strong, Jr. and Thomas J. Garite}, title={Preface}, booktitle={Obstetric Intensive Care Manual, 4e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={obgyn.mhmedical.com/content.aspx?aid=1115690004} }