@article{ref1,
title="Evaluation of the use of braces to prevent injury to the knee in collegiate football players",
journal="Journal of bone and joint surgery: American volume",
year="1987",
author="",
volume="69",
number="9",
pages="1467-1470",
abstract="<p>[Abstract unavailable]  Keywords: American football; </p> <p>Language: en</p>",
language="en",
issn="0021-9355",
doi="",
url="http://dx.doi.org/"
}