@article{ref1,
title="Past, present, and future of head injury research",
journal="Exercise and sport sciences reviews",
year="2011",
author="Duma, Stefan M. and Rowson, Steven",
volume="39",
number="1",
pages="2-3",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0091-6331",
doi="10.1097/JES.0b013e318203dfdb",
url="http://dx.doi.org/10.1097/JES.0b013e318203dfdb"
}