@inbook{1187892392, author={Kenneth J. Ryan}, title={Virus de la parotiditis, sarampión, rubéola y otros exantemas de la infancia}, booktitle={Sherris. Microbiología médica, 7e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2021}, url={accessmedicina.mhmedical.com/content.aspx?aid=1187892392} }