@article{ref1,
title="Evaluation of pre-existing conditions in expert testimony of accident injuries, changes during the last 15-20 years",
journal="Hefte zur Unfallheilkunde",
year="1975",
author="Turban, K. L. and Hanck, G.",
volume="",
number="121",
pages="279-281",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0085-1469",
doi="",
url="http://dx.doi.org/"
}