@article{ref1,
title="How risky is the relative risk in epidemiologic studies?",
journal="Biomedizinische Technik",
year="1997",
author="Irnich, W.",
volume="42",
number="Suppl",
pages="107-108",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0013-5585",
doi="",
url="http://dx.doi.org/"
}