@article{ref1,
title="Nitrogen dioxide (silo gas) poisoning in pigs",
journal="American journal of veterinary research",
year="1970",
author="Giddens, W. E. and Whitechair, C. K. and Sleight, S. D.",
volume="31",
number="10",
pages="1779-1786",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9645",
doi="",
url="http://dx.doi.org/"
}