@article{ref1,
title="Heart injuries according to our data",
journal="Polski Tygodnik Lekarski",
year="1980",
author="Religa, Z. and Sitkowski, W.",
volume="35",
number="26",
pages="981-982",
abstract="<p>[Abstract unavailable]</p><p>Language: pl</p>",
language="pl",
issn="0032-3756",
doi="",
url="http://dx.doi.org/"
}