@article{ref1,
title="Electrocardiographic changes in poisoning",
journal="Ärztliche Wochenschrift",
year="1956",
author="Ritter, U.",
volume="11",
number="33",
pages="721-726",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0365-6403",
doi="",
url="http://dx.doi.org/"
}