@article{ref1,
title="Tiny studies for occupational disorders",
journal="Nippon Seikeigeka Gakkai Zasshi",
year="1997",
author="Katsumi, S.",
volume="71",
number="1",
pages="18-20",
abstract="<p>[Abstract unavailable]</p><p>Language: ja</p>",
language="ja",
issn="0021-5325",
doi="",
url="http://dx.doi.org/"
}