@article{ref1,
title="High school football injuries: evaluation",
journal="American journal of sports medicine",
year="1987",
author="Thompson, N. and Halpern, B. and Curl, Walton W. and Andrews, J. R. and Hunter, S. C. and Boring, J. R. and McLeod, W. D.",
volume="15",
number="2",
pages="117-124",
abstract="An epidemiologic survey of the literature on high school football injuries revealed methodologic problems. These numerator-denominator inconsistencies and other confounding factors are discussed. The authors suggest a more reliable system of reporting these parameters to further reduce the risk of high school football injuries.  Keywords: American football; <p /> <p>Language: en</p>",
language="en",
issn="0363-5465",
doi="",
url="http://dx.doi.org/"
}