@article{ref1,
title="Causal relations between trauma and malignant tumor",
journal="Deutsche Gesundheitswesen",
year="1955",
author="Mordeja, J.",
volume="10",
number="32",
pages="1057-1067",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0012-0219",
doi="",
url="http://dx.doi.org/"
}