@article{ref1,
title="The window of risk in repeated head injury",
journal="Journal of neurotrauma",
year="2013",
author="Povlishock, John T.",
volume="30",
number="1",
pages="1-1",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0897-7151",
doi="10.1089/neu.2013.9942",
url="http://dx.doi.org/10.1089/neu.2013.9942"
}