@article{ref1,
title="Myocardial contusion without obvious severe chest trauma",
journal="American journal of emergency medicine",
year="1988",
author="Fein, S. A. and Lombardo, D. and Daudiss, K.",
volume="6",
number="1",
pages="84-85",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0735-6757",
doi="",
url="http://dx.doi.org/"
}