@article{ref1,
title="Let's drop high school football",
journal="North Carolina medical journal",
year="2015",
author="Margolis, Lewis",
volume="76",
number="3",
pages="196-196",
abstract="<p>[Abstract unavailable]  Keywords: American football</p> <p>Language: en</p>",
language="en",
issn="0029-2559",
doi="10.18043/ncm.76.3.196",
url="http://dx.doi.org/10.18043/ncm.76.3.196"
}