@article{ref1,
title="When is sleepiness a disease? How do we measure it?",
journal="Sleep Medicine",
year="2006",
author="Sangal, R. Bart",
volume="7",
number="4",
pages="310-311",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1389-9457",
doi="10.1016/j.sleep.2006.02.002",
url="http://dx.doi.org/10.1016/j.sleep.2006.02.002"
}