@article{ref1,
title="You can run but you can't hide: the role of concussion severity scales in sport",
journal="British journal of sports medicine",
year="1999",
author="McCrory, P. R.",
volume="33",
number="5",
pages="297-298",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0306-3674",
doi="",
url="http://dx.doi.org/"
}