@article{ref1,
title="Summaries for patients. Coffee and napping improve nighttime highway driving",
journal="Annals of internal medicine",
year="2006",
author="",
volume="144",
number="11",
pages="I11-I11",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-4819",
doi="",
url="http://dx.doi.org/"
}