@article{ref1,
title="Pulmonary aspiration",
journal="American journal of medicine",
year="1971",
author="Ribaudo, C. A. and Grace, W. J.",
volume="50",
number="4",
pages="510-520",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-9343",
doi="",
url="http://dx.doi.org/"
}