@article{ref1,
title="Lower cognitive performance of older football players possessing apolipoprotein E epsilon4",
journal="Neurosurgery",
year="2001",
author="Zlokovic, B. V. and Cox, C.",
volume="48",
number="5",
pages="1196-1197",
abstract="<p>[Abstract unavailable]  Keywords: American football </p> <p>Language: en</p>",
language="en",
issn="0148-396X",
doi="",
url="http://dx.doi.org/"
}