@article{ref1,
title="Electrocardiographic changes in carbon monoxide poisoning",
journal="Revista Clinica Espanola",
year="1953",
author="Lorente, L. and Varela de seijas, J.",
volume="50",
number="1-2",
pages="103-105",
abstract="<p>[Abstract unavailable]</p><p>Language: un</p>",
language="un",
issn="0014-2565",
doi="",
url="http://dx.doi.org/"
}