@article{ref1,
title="Occupational health services in the Nordic countries--organization, tasks, trends and problems",
journal="Journal of UOEH",
year="1989",
author="Westerholm, P.",
volume="11 Suppl",
number="",
pages="137-149",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0387-821X",
doi="",
url="http://dx.doi.org/"
}