@article{ref1,
title="Fitted mouthguards afford key protection",
journal="Journal of the American Dental Association",
year="1972",
author="",
volume="84",
number="3",
pages="531-531",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8177",
doi="",
url="http://dx.doi.org/"
}