@article{ref1,
title="What is this red mark?",
journal="Journal of the California Dental Association",
year="2004",
author="Shanel-Hogan, Kathleen A.",
volume="32",
number="4",
pages="304-305",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="1043-2256",
doi="",
url="http://dx.doi.org/"
}