@article{ref1,
title="Portable diagnostic devices and commercial motor vehicle drivers",
journal="Sleep",
year="2013",
author="Zhang, Chunbai and Berger, Mark and Malhotra, Atul and Kales, Stefanos",
volume="36",
number="8",
pages="1263-1264",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0161-8105",
doi="10.5665/sleep.2902",
url="http://dx.doi.org/10.5665/sleep.2902"
}