@article{ref1,
title="Cheerleading injuries and safety",
journal="Journal of athletic training",
year="2009",
author="Mueller, Frederick O.",
volume="44",
number="6",
pages="565-566",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1062-6050",
doi="10.4085/1062-6050-44.6.565",
url="http://dx.doi.org/10.4085/1062-6050-44.6.565"
}