@inbook{1175059683, author={Kim E. Barrett and Susan M. Barman and Heddwen L. Brooks and Jason X.-J. Yuan}, title={Visión}, booktitle={Ganong Fisiología médica, 26a}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2020}, url={accessmedicina.mhmedical.com/content.aspx?aid=1175059683} }