@article{ref1,
title="Reflections on head injuries in sport and the concussion controversy",
journal="Clinical journal of sport medicine",
year="1997",
author="Cantu, Robert C.",
volume="7",
number="2",
pages="83-84",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="1050-642X",
doi="",
url="http://dx.doi.org/"
}