@inbook{56996240,
author={Diana Nicoll and Chuanyi Mark Lu and Michael Pignone and Stephen J. McPhee},
title={ECG/Echo},
booktitle={Pocket Guide to Diagnostic Tests, 6e},
publisher={The McGraw-Hill Companies},
address={New York, NY},
year={2012},
url={accessmedicine.mhmedical.com/content.aspx?aid=56996240}
}