@article{ref1,
title="Intrathoracic foreign bodies",
journal="Thorax",
year="1964",
author="Leroux, BT",
volume="19",
number="",
pages="203-217",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0040-6376",
doi="",
url="http://dx.doi.org/"
}