@article{ref1,
title="Commentary: The Injury Proportion Ratio: What's It All About?",
journal="Journal of athletic training",
year="2010",
author="Knowles, Sarah B. and Kucera, Kristen L. and Marshall, Stephen W.",
volume="45",
number="5",
pages="475-477",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1062-6050",
doi="10.4085/1062-6050-45.5.475",
url="http://dx.doi.org/10.4085/1062-6050-45.5.475"
}