@article{ref1,
title="Intrauterine death of the fetus due to accidental carbon monoxide poisoning",
journal="New England journal of medicine",
year="1955",
author="Graham, S. and Muller, G. L.",
volume="252",
number="25",
pages="1075-1078",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0028-4793",
doi="10.1056/NEJM195506232522505",
url="http://dx.doi.org/10.1056/NEJM195506232522505"
}