@article{ref1,
title="Chronic traumatic encephalopathy in the National Football League",
journal="Neurosurgery",
year="2007",
author="Cantu, Robert C.",
volume="61",
number="2",
pages="223-225",
abstract="<p>[Abstract unavailable]  Keywords: American football </p> <p>Language: en</p>",
language="en",
issn="0148-396X",
doi="10.1227/01.NEU.0000255514.73967.90",
url="http://dx.doi.org/10.1227/01.NEU.0000255514.73967.90"
}