@article{ref1,
title="Epidemiology of emergencies posing threat to life in the City of Lódź",
journal="Polski Tygodnik Lekarski",
year="1972",
author="Matczak, J.",
volume="27",
number="9",
pages="353-355",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0032-3756",
doi="",
url="http://dx.doi.org/"
}