@article{ref1,
title="Injuries in youth football: a comparison of injury rates, body size and biological maturity between two community youth football programs",
journal="Medicine and science in sports and exercise",
year="2006",
author="Morano, Peter J. and Barron, Mary J. and Miller, S. J. and Malina, Robert M.",
volume="38",
number="5 Suppl",
pages="S50-S50",
abstract="<p>[Abstract unavailable]  Keywords: American football; </p> <p>Language: en</p>",
language="en",
issn="0195-9131",
doi="",
url="http://dx.doi.org/"
}