@article{ref1,
title="Fate of cardiac foreign bodies",
journal="Surgery",
year="1949",
author="Fritz, Jessica M. and Newman, M. M.",
volume="25",
number="6",
pages="869-879",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0039-6060",
doi="",
url="http://dx.doi.org/"
}