@inbook{1118132212, author={Laura Moreno Altamirano}, title={Nota}, booktitle={EpidemiologĂ­a clĂ­nica, 3e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessmedicina.mhmedical.com/content.aspx?aid=1118132212} }