@article{ref1,
title="Concussion Management at the NFL, College, High School, and Youth Sports Levels",
journal="Neurosurgery",
year="2011",
author="Maroon, Joseph C. and Bost, Jeffrey W.",
volume="69",
number="Suppl",
pages="51-56",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0148-396X",
doi="10.1227/NEU.0b013e3182269efe",
url="http://dx.doi.org/10.1227/NEU.0b013e3182269efe"
}