@article{ref1,
title="Commentary. Concussions in football",
journal="Harvard Mental Health Letter",
year="2010",
author="Miller, Michael Craig",
volume="26",
number="7",
pages="8-8",
abstract="<p>[Abstract unavailable]  Keywords: American football </p> <p>Language: en</p>",
language="en",
issn="1057-5022",
doi="",
url="http://dx.doi.org/"
}