@article{ref1,
title="Analysis of poisoning based on 20-year data from the 3d Internal Disease Clinic in Gdańsk",
journal="Polski Tygodnik Lekarski",
year="1983",
author="Niznikiewicz, J. and Sworczak, K.",
volume="38",
number="1",
pages="13-14",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0032-3756",
doi="",
url="http://dx.doi.org/"
}