@article{ref1,
title="Destruction of human teeth",
journal="Journal of the American Dental Association",
year="1999",
author="Christensen, G. J.",
volume="130",
number="8",
pages="1229-1230",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8177",
doi="",
url="http://dx.doi.org/"
}