@article{ref1,
title="A newly developing occupational health service system in Korea",
journal="Journal of UOEH",
year="1989",
author="Cho, K. S.",
volume="11",
number="Suppl",
pages="248-257",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0387-821X",
doi="",
url="http://dx.doi.org/"
}