@article{ref1,
title="Medical evaluation of driver impairment",
journal="Wisconsin medical journal",
year="1967",
author="",
volume="66",
number="1",
pages="7-8",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0043-6542",
doi="",
url="http://dx.doi.org/"
}