@article{ref1,
title="Review of experience gained in 40 years occupational medicine and over 20 years teaching",
journal="Journal of UOEH",
year="1989",
author="Thiess, A. M.",
volume="11",
number="Suppl",
pages="150-164",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0387-821X",
doi="",
url="http://dx.doi.org/"
}