@article{ref1,
title="Industrial nitrous oxide poisoning",
journal="Imprensa Medica",
year="1951",
author="Paiva, J. de A.",
volume="27",
number="455",
pages="57-58",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="",
doi="",
url="http://dx.doi.org/"
}