@article{ref1,
title="Acute and chronic brain injury in United States National Team Soccer Players",
journal="American journal of sports medicine",
year="1996",
author="Jordan, Barry D.",
volume="24",
number="5",
pages="704-705",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0363-5465",
doi="",
url="http://dx.doi.org/"
}