@article{ref1,
title="Surgical pros and cons: impact of repeal of motorcycle helmet law",
journal="Surgery, gynecology and obstetrics",
year="1981",
author="",
volume="152",
number="4",
pages="503-505",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0039-6087",
doi="",
url="http://dx.doi.org/"
}