@inbook{1139745058,
author={Steven J. Lester and Amir E. Abbas},
editor={Crawford, Michael H.},
title={Aortic Stenosis},
booktitle={CURRENT Diagnosis & Treatment: Cardiology, 5e},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2017},
url={accesscardiology.mhmedical.com/content.aspx?aid=1139745058}
}