@article{ref1,
title="High school football game injuries from four Birmingham municipal fields",
journal="Alabama journal of medical sciences",
year="1987",
author="Culpepper, M. I. and Morrison, Tony",
volume="24",
number="4",
pages="378-382",
abstract="<p>[Abstract unavailable]  Keywords: American football; </p> <p>Language: en</p>",
language="en",
issn="0002-4252",
doi="",
url="http://dx.doi.org/"
}