@article{ref1,
title="Motor vehicle crash fatalities and seat belt laws",
journal="Annals of internal medicine",
year="2015",
author="",
volume="163",
number="3",
pages="I-33",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-4819",
doi="10.7326/P15-9025",
url="http://dx.doi.org/10.7326/P15-9025"
}