@article{ref1,
title="Management of concussion in sports",
journal="Neurology",
year="1999",
author="Jordan, Barry D.",
volume="53",
number="4",
pages="892-892",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-3878",
doi="",
url="http://dx.doi.org/"
}