@article{ref1,
title="Mouthguards for rugby players at primary school level",
journal="Journal of the Dental Association of South Africa",
year="1981",
author="de Wet, F. A. and Badenhorst, M. and Rossouw, L. M.",
volume="36",
number="4",
pages="249-253",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0011-8516",
doi="",
url="http://dx.doi.org/"
}