@article{ref1,
title="Causal connection between skull brain injuries and brain tumors. Case report and indications for expert testimony",
journal="Lebensversicherungs Medizin",
year="1972",
author="Flenker, H.",
volume="24",
number="5",
pages="115-117",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0024-0044",
doi="",
url="http://dx.doi.org/"
}