@article{ref1,
title="Analysis of the proximity of fatal motor vehicle crash locations to the availability of helicopter emergency medical service response",
journal="Annals of emergency medicine",
year="2012",
author="",
volume="60",
number="2",
pages="232-232",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0196-0644",
doi="",
url="http://dx.doi.org/"
}