@article{ref1,
title="Dental injuries in rugby football",
journal="New Zealand dental journal",
year="1969",
author="Hawke, J. E. and Nicholas, N. K.",
volume="65",
number="301",
pages="173-175",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-8047",
doi="",
url="http://dx.doi.org/"
}