@article{ref1,
title="The effects of a modern emergency medical care system in reducing automobile crash deaths",
journal="Journal of trauma",
year="1973",
author="Waters, J. M. and Wells, C. H.",
volume="13",
number="7",
pages="645-647",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-5282",
doi="",
url="http://dx.doi.org/"
}