@inbook{3486402,
author={David L. Simel and Drummond Rennie},
title={Pulmonary Embolus},
booktitle={The Rational Clinical Examination: Evidence-Based Clinical Diagnosis},
publisher={McGraw-Hill Education},
address={New York, NY},
year={2016},
url={jamaevidence.mhmedical.com/content.aspx?aid=3486402}
}