@article{ref1,
title="Unusual carbon monoxide poisoning in hat makers",
journal="Medizinische klinik (Munich, Germany : 1983)",
year="1952",
author="Humperdinck, K.",
volume="47",
number="28",
pages="933-934",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0723-5003",
doi="",
url="http://dx.doi.org/"
}