@article{ref1,
title="Chronic evidence deficit",
journal="Pharma-Kritik",
year="2001",
author="Gysling, E.",
volume="23",
number="17",
pages="67-68",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="1010-5409",
doi="",
url="http://dx.doi.org/"
}