@article{ref1,
title="The double-edged blade of recreational hockey",
journal="CMAJ : Canadian Medical Association journal",
year="2002",
author="Mittleman, Murray A.",
volume="166",
number="3",
pages="331-332",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0820-3946",
doi="",
url="http://dx.doi.org/"
}