@article{ref1,
title="Pulmonary changes caused by nonpenetrating chest injuries",
journal="Duodecim: Laaketieteellinen Aikakauskirja",
year="1965",
author="Helelae, T. and Virtama, P.",
volume="81",
number="",
pages="574-577",
abstract="<p>[Abstract unavailable]</p><p>Language: sv</p>",
language="sv",
issn="0012-7183",
doi="",
url="http://dx.doi.org/"
}