@article{ref1,
title="Fatal carbon monoxide poisoning attributed to an incorrectly installed natural gas boiler",
journal="Ugeskrift for Laeger",
year="1987",
author="Hougen, Hans Petter and Theilade, P.",
volume="149",
number="23",
pages="1563-1564",
abstract="<p>[Abstract unavailable]</p><p>Language: da</p>",
language="da",
issn="0041-5782",
doi="",
url="http://dx.doi.org/"
}