@article{ref1,
title="Proposed DSM-IV criteria for "postconcussive disorder"",
journal="Journal of neuropsychiatry and clinical neurosciences",
year="1993",
author="Gross, H.",
volume="5",
number="2",
pages="224-225",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0895-0172",
doi="",
url="http://dx.doi.org/"
}