@article{ref1,
title="Mouthguards in sport",
journal="Australian dental journal",
year="1990",
author="",
volume="35",
number="2",
pages="186-187",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0045-0421",
doi="",
url="http://dx.doi.org/"
}