@article{ref1,
title="Geographic variations in mortality from motor vehicle crashes",
journal="New England journal of medicine",
year="1987",
author="",
volume="317",
number="25",
pages="1600-1602",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="",
url="http://dx.doi.org/"
}