@article{ref1,
title="A 15-year-old rugby player with a head injury",
journal="CMAJ : Canadian Medical Association journal",
year="2015",
author="Pham, Hoang and Zemek, Roger",
volume="187",
number="3",
pages="200-202",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0820-3946",
doi="10.1503/cmaj.141089",
url="http://dx.doi.org/10.1503/cmaj.141089"
}