@article{ref1,
title="Operational physiology in the U.S. Navy",
journal="Aviation, space, and environmental medicine",
year="2001",
author="Clark, J.",
volume="72",
number="1",
pages="82-83",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0095-6562",
doi="",
url="http://dx.doi.org/"
}