@article{ref1,
title="Assessment of head injuries",
journal="Journal of oral surgery",
year="1974",
author="Kiersch, T. A. and Kaufman, J. B.",
volume="32",
number="4",
pages="269-274",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-3255",
doi="",
url="http://dx.doi.org/"
}