@article{ref1,
title="A survey on fractures of the mandible",
journal="Journal of the Dental Association of South Africa",
year="1976",
author="Rosenberg, I. and Smith, I.",
volume="31",
number="11",
pages="555-567",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0011-8516",
doi="",
url="http://dx.doi.org/"
}