@article{ref1,
title="Mouthguard use should be encouraged for many sports",
journal="Dentistry (American Student Dental Association)",
year="1991",
author="Miller, M. and Truhe, T. F.",
volume="11",
number="1",
pages="21-22",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0277-3635",
doi="",
url="http://dx.doi.org/"
}