@inbook{1153111152, author={Diana Nicoll and Chuanyi Mark Lu and Stephen J. McPhee}, title={Prefacio}, booktitle={Guía de pruebas para diagnóstico, 7e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2018}, url={accessmedicina.mhmedical.com/content.aspx?aid=1153111152} }