@article{ref1,
title="Paying attention to at-risk commercial vehicle operators",
journal="Chest",
year="2006",
author="Collop, Nancy and Hartenbaum, Natalie and Rosen, Ilene and Phillips, Barbara",
volume="130",
number="3",
pages="637-639",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0012-3692",
doi="10.1378/chest.130.3.637",
url="http://dx.doi.org/10.1378/chest.130.3.637"
}