@article{ref1,
title="Surveillance Snapshot: Symptoms diagnosed during traumatic brain injury-related medical encounters, active component, U.S. Armed Forces, January 2008-December 2010",
journal="Medical surveillance monthly report",
year="2011",
author="",
volume="18",
number="9",
pages="16-16",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="2158-0111",
doi="",
url="http://dx.doi.org/"
}