@article{ref1,
title="Traumatic brain injury",
journal="Archives of physical medicine and rehabilitation",
year="1999",
author="Gray, J. M.",
volume="80",
number="3",
pages="355-356",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0003-9993",
doi="",
url="http://dx.doi.org/"
}