@article{ref1,
title="Drowsiness and driving--a dangerous duo",
journal="Minnesota medicine",
year="2006",
author="Mahowald, M. W. and Bornemann, Michel A. Cramer",
volume="89",
number="5",
pages="32-34",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0026-556X",
doi="",
url="http://dx.doi.org/"
}