@article{ref1,
title="An evaluation of a commercial protective mouthpiece for football players",
journal="Journal of the American Dental Association",
year="1961",
author="Moon, D. G. and Mitchell, D. F.",
volume="62",
number="",
pages="568-572",
abstract="<p>[Abstract unavailable]  Keywords: American football; </p> <p>Language: en</p>",
language="en",
issn="0002-8177",
doi="",
url="http://dx.doi.org/"
}