@inbook{1128692765, author={Paul Riordan-Eva and Emmett T. Cunningham, Jr.}, title={EpĂ­grafe}, booktitle={Vaughan y Asbury. OftalmologĂ­a general, 18e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2015}, url={accessmedicina.mhmedical.com/content.aspx?aid=1128692765} }