@article{ref1,
title="Mouth protectors: 11 years later. Bureau of Dental Health Education, Council on Dental Materials and Devices",
journal="Journal of the American Dental Association",
year="1973",
author="",
volume="86",
number="6",
pages="1365-1367",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8177",
doi="",
url="http://dx.doi.org/"
}