@article{ref1,
title="Age of first exposure to football and later-life cognitive impairment in former NFL players",
journal="Neurology",
year="2015",
author="Andrikopoulos, Jim",
volume="85",
number="11",
pages="1007-1007",
abstract="<p>[Abstract unavailable]  Keywords: American football </p> <p>Language: en</p>",
language="en",
issn="0028-3878",
doi="",
url="http://dx.doi.org/"
}