@inbook{1159589115, author={Judith E. Tintinalli and J. Stephan Stapczynski and O. John Ma and Donald M. Yealy and Garth D. Meckler and David M. Cline}, title={Prefacio}, booktitle={Tintinalli. Medicina de urgencias, 8e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accessmedicina.mhmedical.com/content.aspx?aid=1159589115} }