@article{ref1,
title="Effects of coffee and napping on nighttime highway driving",
journal="Annals of internal medicine",
year="2007",
author="Yee, Andrew J.",
volume="146",
number="3",
pages="229; author reply 229-229; author reply 229",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-4819",
doi="",
url="http://dx.doi.org/"
}