@article{ref1,
title="Naps and drugs to combat fatigue and sleepiness",
journal="Annals of internal medicine",
year="2006",
author="Guilleminault, C. and Ramar, Kannan",
volume="144",
number="11",
pages="856-857",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0003-4819",
doi="",
url="http://dx.doi.org/"
}