@article{ref1,
title="Present-day problems of poisoning",
journal="Pielȩgniarka i Połozna",
year="1974",
author="Widy, W.",
volume="0",
number="9",
pages="4-5",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0048-4148",
doi="",
url="http://dx.doi.org/"
}