@article{ref1,
title="Mouth guards in contact sports",
journal="Journal - Connecticut State Dental Association",
year="1974",
author="Castaldi, C. L.",
volume="48",
number="4",
pages="233-241",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0010-6232",
doi="",
url="http://dx.doi.org/"
}