@article{ref1,
title="Self-mutilating behaviors involving the oral cavity",
journal="Journal of oral medicine",
year="1974",
author="Ayer, W. A. and Levin, M. P.",
volume="29",
number="1",
pages="4-7",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3247",
doi="",
url="http://dx.doi.org/"
}