@inbook{1120805690, author={Patrick T. O’Gara and Joseph Loscalzo}, editor={Kasper, Dennis and Fauci, Anthony and Hauser, Stephen and Longo, Dan and Jameson, J. Larry and Loscalzo, Joseph}, title={Aortic Valve Disease}, booktitle={Harrison's Principles of Internal Medicine, 19e}, publisher={McGraw-Hill Education}, address={New York, NY}, year={2014}, url={accesspharmacy.mhmedical.com/content.aspx?aid=1120805690} }