@article{ref1,
title="Carbon monoxide poisoning in pregnancy",
journal="Canadian family physician",
year="1996",
author="",
volume="42",
number="",
pages="854-855",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0008-350X",
doi="",
url="http://dx.doi.org/"
}