@article{ref1,
title="Trauma of the brain caused by football accidents",
journal="Pennsylvania medical journal",
year="1958",
author="Gay, J. R.",
volume="61",
number="7",
pages="883-886",
abstract="<p>[Abstract unavailable]  Keywords: American football; </p> <p>Language: en</p>",
language="en",
issn="0096-0667",
doi="",
url="http://dx.doi.org/"
}