@article{ref1,
title="Helmets for motor cyclists: lower fatal head injury rate but more crashes mean more study",
journal="JAMA journal of the American Medical Association",
year="1992",
author="Desoer, C",
volume="268",
number="18",
pages="2518-2518",
abstract="Abstract unavailable.",
language="",
issn="0098-7484",
doi="",
url="http://dx.doi.org/"
}