@article{ref1,
title="Aspiration and inhalation pneumonias",
journal="Seminars in roentgenology",
year="1980",
author="Berkmen, Y. M.",
volume="15",
number="1",
pages="73-84",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0037-198X",
doi="",
url="http://dx.doi.org/"
}