@article{ref1,
title="Occupational diseases and intoxications in the Wroclaw Province during the years 1967-1969",
journal="Polski Tygodnik Lekarski",
year="1971",
author="Juzwiak, I.",
volume="26",
number="15",
pages="568-569",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0032-3756",
doi="",
url="http://dx.doi.org/"
}