@article{ref1,
title="Functional mouth protectors for contact sports",
journal="Journal of the American Dental Association",
year="1954",
author="Watts, G. and Woolard, A. and Singer, C. E.",
volume="49",
number="1",
pages="7-11",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8177",
doi="",
url="http://dx.doi.org/"
}