@article{ref1,
title="Severe trauma as an etiologic factor in rheumatoid arthritis",
journal="Scandinavian journal of rheumatology",
year="1974",
author="Julkunen, H. and Räsänen, J. A. and Kataja, J.",
volume="3",
number="2",
pages="97-102",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0300-9742",
doi="",
url="http://dx.doi.org/"
}