@article{ref1,
title="An evaluation of the effectiveness of mouthguards in high-school rugby players",
journal="New Zealand dental journal",
year="1979",
author="Morton, J. G. and Burton, J. F.",
volume="75",
number="341",
pages="151-153",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-8047",
doi="",
url="http://dx.doi.org/"
}