@article{ref1,
title="The relation of mouth protectors to cranial pressure and deformation",
journal="Journal of the American Dental Association",
year="1967",
author="Hickey, J. C. and Morris, A. L. and Carlson, L. D. and Seward, T. E.",
volume="74",
number="4",
pages="735-740",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8177",
doi="",
url="http://dx.doi.org/"
}