@article{ref1,
title="Effect of musculoskeletal injury on concussion testing: letter to the editor",
journal="American journal of sports medicine",
year="2012",
author="Coldren, Rodney L. and Russell, Michael and Kelly, Mark P. and Parish, Robert V. and Dretsch, Michael and Hutchison, Michael and Comper, Paul",
volume="40",
number="9",
pages="NP18-20",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0363-5465",
doi="10.1177/0363546512457655",
url="http://dx.doi.org/10.1177/0363546512457655"
}