@article{ref1,
title="Can an earthquake cause flares of rheumatoid arthritis or lupus nephritis?",
journal="Arthritis and rheumatism",
year="1994",
author="Wallace, D. J. and Metzger, A. L.",
volume="37",
number="12",
pages="1826-1828",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0004-3591",
doi="",
url="http://dx.doi.org/"
}