@article{ref1,
title="Epidemiologic framework absent",
journal="Journal of Occupational Medicine",
year="1993",
author="Wolens, D.",
volume="35",
number="11",
pages="1084-1084",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0096-1736",
doi="",
url="http://dx.doi.org/"
}