@article{ref1,
title="The problem in New York City of accidental carbon monoxide poisoning",
journal="New York medicine",
year="1952",
author="Trichter, J. and Helpern, M.",
volume="8",
number="20",
pages="30-37",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-7377",
doi="",
url="http://dx.doi.org/"
}