@article{ref1,
title="A universal helmet law",
journal="Connecticut medicine",
year="2012",
author="Deren, Michael M.",
volume="76",
number="8",
pages="501-502",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0010-6178",
doi="",
url="http://dx.doi.org/"
}