@article{ref1,
title="Safety: a manufacturer's perspective",
journal="Perfusion",
year="1997",
author="Wierenga, E. J.",
volume="12",
number="4",
pages="229-231",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0267-6591",
doi="",
url="http://dx.doi.org/"
}