@article{ref1,
title="A shotgun injury of the heart",
journal="Archivum Chirurgicum Neerlandicum",
year="1965",
author="van der Zwaag, G. L. and Hartog, H. A.",
volume="17",
number="3",
pages="159-163",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0004-0657",
doi="",
url="http://dx.doi.org/"
}