@article{ref1,
title="The postconcussion syndrome: 130 years of controversy",
journal="Seminars in Neurology",
year="1994",
author="Evans, R. I.",
volume="14",
number="1",
pages="32-39",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0271-8235",
doi="10.1055/s-2008-1041056",
url="http://dx.doi.org/10.1055/s-2008-1041056"
}