@article{ref1,
title="Gulf War veterans with PTSD",
journal="Military medicine",
year="1993",
author="Viola, J. M. and Hicks, R. and Porter, Theresa",
volume="158",
number="3",
pages="A4-A4",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0026-4075",
doi="",
url="http://dx.doi.org/"
}