@article{ref1,
title="Impalement injury of the thorax with perforation of the upper lobe",
journal="Helvetica Chirurgica Acta",
year="1966",
author="Matter, P. and Siegrist, Johannes and Allgöwer, M.",
volume="33",
number="1",
pages="140-144",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0018-0181",
doi="",
url="http://dx.doi.org/"
}