@article{ref1,
title="Not 'OK to play': Risk of second impact syndrome supports a cautious approach to treating head injuries in young athletes",
journal="JEMS: a journal of emergency medical services",
year="2014",
author="Kolb, Joseph J.",
volume="39",
number="1",
pages="28-32",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0197-2510",
doi="",
url="http://dx.doi.org/"
}