@article{ref1,
title="The incidence of high school football injuries",
journal="Rhode Island medical journal (1917)",
year="1967",
author="Garrahan, W. F.",
volume="50",
number="12",
pages="833-835",
abstract="<p>[Abstract unavailable]  Keywords: American football; </p> <p>Language: en</p>",
language="en",
issn="0035-4627",
doi="",
url="http://dx.doi.org/"
}