@article{ref1,
title="Maxillofacial injuries",
journal="US Navy medicine",
year="1970",
author="",
volume="56",
number="4",
pages="39-41",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0364-6807",
doi="",
url="http://dx.doi.org/"
}