@article{ref1,
title="Football and the brain: does career duration provide protective effects?",
journal="Radiology",
year="2018",
author="Maldjian, Joseph A.",
volume="286",
number="3",
pages="978-980",
abstract="<p>[Abstract unavailable]  Keywords: American football </p> <p>Language: en</p>",
language="en",
issn="0033-8419",
doi="10.1148/radiol.2018172614",
url="http://dx.doi.org/10.1148/radiol.2018172614"
}