@article{ref1,
title="Letter: Prevention of self-inflicted trauma",
journal="Journal of oral surgery",
year="1975",
author="Hanson, G. E.",
volume="33",
number="3",
pages="167-167",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3255",
doi="",
url="http://dx.doi.org/"
}