@article{ref1,
title="Environmental concentrations of nitrous oxide in a modular ambulance",
journal="Critical care medicine",
year="1986",
author="Bristow, A. and Giesecke, A. H. and Thal, E. and Atkins, J. M.",
volume="14",
number="9",
pages="815-816",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0090-3493",
doi="",
url="http://dx.doi.org/"
}